RGBlink ASK nano Wireless Presentation and Collaboration System User Manual

1.  Search RX’s own hotspot in Settings. The WIFI name is usually ASK nano-XXXXXX, and the initial password is 12345678 or check the password displayed on the standby interface of RX.
2.  Click “Screen Mirroring” in general Settings to project the image of phone to the big screen.

Android
Situation 1:
Android phones have two projection modes, Miracast Mode and TX/DLNA/AirPlay Mode. The way to switch between the two modes is to lightly touch the mode switch key on the RX. In TX/DLNA/AirPlay Mode, an Android phone can only project pictures and videos, and in Miracast mode, an Android phone can project the current image of the mobile phone.

TX/DLNA/AirPlay Mode
In this mode, the screen projection method of Android phones is the same as that of iPhone phones, both of which need to be connected to the hotspot of RX.
The specific steps are as follows:

1. Search RX’s own hotspot in Settings. The WIFI name is usually ASK Nano-XXXXXX, and the initial password is 12345678 or check the password displayed on the standby interface of RX.
2. Click “Wireless Projection” in general Settings to project the current image to the big screen.

Miracast Mode
The screen projection steps of Android phones in Miracast Mode are as follows:

1. Touch the Mode Switch Key on the RX to enter Miracast Mode. The screen on the RX will show “Miracast Mode”.
2. Search RX’s own hotspot in Settings. The WIFI name is usually ASK nano-XXXXXX, and the initial password is 12345678 or check the password displayed on the standby interface of RX.
3.  After connection, open “Wireless Projection” in the general list, and select ASK nano from the list to project the current image of phone.

Note: When clicking “Wireless Projection”, select “Yes” on WLAN setting, and the mobile phone does not need to be connected to any LAN WIFI.

Situation 2:
Users can select the wiring in the picture below to connect power and RX . If using the wiring, Android phone can project the current image of the phone without switching mode.
Operation steps are as follows:

1. Connect RX’s micro USB port and power with 2.4G wireless cable;
2. Search RX’s own hotspot in Settings. The WIFI name is usually ASK nano-XXXXXX, and the initial password is 12345678 or check the password displayed on the standby interface of RX.
3.  After connection, open “Wireless Projection” in the general list, and select ASK nano from the list to project the current image of phone.

 Examples Demonstration of Screen Projection

When using Windows computer, macOS computer, Android phone and iPhone simultaneously,

1. When using Windows computer to project, plug TX firstly, touch the projection key after successful pairing of TX and RX, then the image of computer can be cast to the big screen;
2. When using MAC computer, plug TX firstly, and gently touch the projection key after successful pairing of TX and RX, then the image of MAC computer will replace that of Windows computer, as shown in the picture; Note: When Android and iPhone connect to the RX’s hotspot, the RX can only be found in the screen projection list after Windows and MAC computer touch the key of TX again to stop projection.If the screen enters the standby interface, TX exits successfully. If not, touch the key again;
3. Clicking “Wireless Projection” on Android phone,
4.  if it is in TX/DLNA/AirPlay mode,the pictures and videos will be cast to the big screen;
5.  if it is in Miracast mode, the current image of phone will be cast to the big screen;
6.  if you use 2.4G wireless cable, the current image of phone will be cast to the big screen.(Operations refer to 3.3.2
7. Clicking “Screen Mirroring” on iPhone,the image will be cast to the big screen;
8. When using Windows computer to cast again,re-plug TX to computer and touch the projection key after successful pairing of TX and RX and the indicator light is static purple,the image of computer will be cast to the big screen.

 MENU

After RX is connected to big screen, the screen enters homepage, which will be set in English by default. Users can switch the language to English in web page menu. The steps to enter the menu as follow:

1. Select and connect ASK nano RX’s hotspot from the WIFI List in your mobile phone or computer; RX hotspot name : ASK nano-XXXXXX; Password : 12345678;

2.  After connection, type the IP address of RX in the web site bar on your phone or computer, as shown in the figure above: 192.168.43.1;
   Note: In case of problems such as abnormal size of interface ICONS and blue background, users can clear browser data before entering the web page.

3.  Enter the web menu.

Add Wireless Network Click “Add WIFI” and select the network to be added from the WIFI list. After joining the network, the big screen of RX will show the name of the LAN and the IP address. Switch the Language Click the Language bar and select Chinese or English from the drop-down menu. The device will restart automatically.

Screen Position Click “Screen Position” to zoom in or zoom out the image of big screen.

Airplay Mode
For devices that support AirPlay, users can select the screen projection mode of “Mirror” or “Streaming.” ” Mirror” means to cast the current image of the phone, while “streaming” means that when using iQIYI, Tencent and other video software to play a video, it will acquire the video address for playing.
Please check the technical support on Apple’s official website for the specific AirPlay “Streaming” and “Mirror” operation: https://support.apple.com/zh-cn/HT204289

Meeting Invitation Click “Meeting Invitation”, open Meeting Invitation in Meeting Status, and fill in the Meeting Name, Start Time, End Time and Meeting Topics(up to eight topics),then click Confirm, the information will show on the top right corner of the screen.

Order Codes

4.1 Product Code
450-0101-02-0 ASK nano TX
450-0002-02-0 ASK nano RX
450-1002-01-0 ASK nano Starter Set (TX1+RX1)
450-1004-01-0 ASK nano Meet Set (TX2+RX1)

 Support

 Contact Us

RGBlink
Headquarters
Xiamen, China
6th Floor Weiye Building
Torch Park Hi Tech Zone
Huli
sales@rgblink.com
+86-592-577-1197

China Regional
Sales & Support
Shenzhen, China
11th Floor Baiwang Building
5318 Shahe West Road
Baimang, Nanshan
§ +86-755-2153-5149

Beijing Region
Office
Beijing, China
Building 8, 25 Oixiao Road
Shahe Town Changing
+86-4008-592-114

Europe Regional
Sales & Support
Eindhoven, Holland
Flight Forum Eindhoven
5657 DW
eu@rgblink.com
+31(040)-202-71-83

India Regional
Sales & Support
Mumbai, India
78/626, Motilal Nagar, No1,
Rd No1, Goregaon West,
Mumbai
support@rgblink.com
+91-98200-86718

 Appendix

 FAQ

1. What if the pairing of TX and RX fail?
   A: Situation 1:First, determine which mode RX is in. If RX power supply via common USB cable (It does not need to consider this problem if 2.4G wireless cable is used), then RX must be in TX/DLNA/ Airplay mode before pairing. If RX is in Miracast mode, touch RX button to switch the mode.
   Situation 2: TX should be powered on because some HDMI input source is underpowered.

2. Why does higher latency and picture distortion happened on signal transmission via ASK nano than HDMI cable?
   A: Wireless transmission is a process of signal encoding and decoding,therefore,signal latency and picture distortion is unavoidable.

3. How to switch language between Chinese and English?
   A: Set in ASK nano WEB page:connect ASK nano RX hotspot firstly->click Language menu->select Chinese or English.

4. Where to download upgrade firmware?
   A: All devices will be upgraded before delivery, so you don’t need to upgrade by yourselves.

5. Should TX and RX be re-paired after receiving?
   A: TX and RX will be paired before delivery. But if you order extra TX, then TX and RX should be paired by yourselves. The steps as follows: Powered on TX and RX->Long press the projection key on TX to clear previous pairing->re- powered TX again, light on TX turns from red to blue, and then purple, which means the pairing is successful.

6. What if Android phone projection does not work?
   A: Method 1: Powered on RX via 2.4G wireless cable firstly,connect to ASK nano hotspot after TX exit projection,and then click Wireless Projection to cast image.
   Method 2: Power on RX via micro USB cable firstly,press RX projection key to switch Miracast Mode,and connect ASK nano hotspot,click Wireless Projection to cast image.

7. What is the differences between TX/DLNA/AirPlay Mode and Miracast Mode?
   A: TX/DLNA/AirPlay Mode can be used for screen projection via TX or iOS phone.Android phone can only project pictures and videos in this mode.
   Miracast Mode can be used for screen projection via Android phone.TX and iOS phone could not project in this mode.

Specification

Receiver

Transmitter

**** 800×600@60 |1024×768@60
1280×720@60 |1280×800@60
1280×960@60 |1280×1024@60
1400×1050@60 |1600×1200@60
1920×1080@60

Supported Standard| HDMI| 1.3
Power| Input Voltage| DC 5V/0.5A
Max Power| 2.5W
Environment| Temperature| 0℃~70℃
Humidity| 10%~85%
Physical| Weight| Net| 0.027kg
Packaged| 0.41kg(TX2+RX1)
Dimension| Net| 73.8mm×32mm×13mm
Packaged| 173mm×120mm×52mm(TX2+RX1)

Accessory Supplement

As shown in the picture above, Type C(F) port connected with a charger can supply power to computer or phone which connect with Type C(M) port.

 Terms & Definitions

• RCA： Connector used primarily in consumer AV equipment for both audio and video. The RCA connector
  was developed by the Radio Corporation of America.

• BNC: Stands for Bayonet Neill-Concelman. A cable connector used extensively in television (named for its inventors). A cylindrical bayonet connector that operates with a twist-locking motion .

• CVBS ： CVBS or Composite video, is an analog video signal without audio. Most commonly CVBS is used for transmission of standard definition signals. In consumer applications the connector is typically RCA type, while in professional applications the connector is BNC type.

•   YPbPr: Used to describe the colour space for progressive-scan. Otherwise known as component video.

• VGA： Video Graphics Array. VGA is an analog signal typically used on earlier computers. The signal is non-interlaced in modes 1, 2, and 3 and interlaced when using in mode

• DVI： Digital Visual Interface. The digital video connectivity standard that was developed by DDWG (Digital Display Work Group). This connection standard offers two different connectors: one with 24 pins that handles digital video signals only, and one with 29 pins that handles both digital and analog video.

• SDI： Serial Digital Interface. Standard definition video is carried on this 270 Mbps data transfer rate. Video pixels are characterized with a 10-bit depth and 4:2:2 color quantization. Ancillary data is included on this interface and typically includes audio or other metadata. Up to sixteen audio channels can be transmitted. Audio is organized into blocks of 4 stereo pairs. Connector is BNC.

•   HD-SDI: high-definition serial digital interface (HD-SDI), is standardized in SMPTE 292M this provides a nominal data rate of 1.485 Gbit/s.

• 3G-SDI: standardized in SMPTE 424M, consists of a single 2.970 Gbit/s serial link that allows replacing dual link

• 6G-SDI: standardized in SMPTE ST-2081 released in 2015, 6Gbit/s bitrate and able to support 2160p@30.

• 12G-SDI: standardized in SMPTE ST-2082 released in 2015, 12Gbit/s bitrate and able to support 2160p@60.

• U-SDI: Technology for transmitting large-volume 8K signals over a single cable. a signal interface called the ultra high definition signal/data interface (U-SDI) for transmitting 4K and 8K signals using a single optical cable. The interface was standardized as the SMPTE ST 2036-4.

• HDMI ： High Definition Multimedia Interface: An interface used for the transmission of uncompressed high definition video, up to 8 channels of audio, and control signals, over a single cable.

• HDMI 1.3: released on June 22 2006, and increased the maximum TMDS clock to 340 MHz (10.2 Gbit/s). Support resolution 1920 × 1080 at 120 Hz or 2560 × 1440 at 60 Hz). It added support for 10 bpc, 12 bpc, and 16 bpc color depth (30, 36, and 48 bit/px), called deep color.

• HDMI 1.4 : released on June 5, 2009, added support for 4096 × 2160 at 24 Hz, 3840 × 2160 at 24, 25, and 30 Hz, and 1920 × 1080 at 120 Hz. Compared to HDMI 1.3, 3 more features added which are HDMI Ethernet Channel (HEC) , audio return channel (ARC),3D Over HDMI, a new Micro HDMI Connector, an expanded set of color spaces.

• HDMI 2.0 , released on September 4, 2013 increases the maximum bandwidth to 18.0 Gbit/s. Other features of HDMI 2.0 include up to 32 audio channels, up to 1536 kHz audio sample frequency, the HE-AAC and DRA audio standards, improved 3D capability, and additional CEC functions.

• HDMI 2.0a: was released on April 8, 2015, and added support for High Dynamic Range (HDR) video with static metadata.

• HDMI 2.0b: was released March, 2016, support for HDR Video transport and extends the static metadata signaling to include Hybrid Log-Gamma (HLG).

• HDMI 2.1 : released on November 28, 2017. It adds support for higher resolutions and higher refresh rates, Dynamic HDR including 4K 120 Hz and 8K 120 Hz.

• DisplayPort: A VESA standard interface primarily for video, but also for audio, USB and other data. DisplayPort (orDP) is backwards compatible with HDMI, DVI and VGA.

• DP 1.1: was ratified on 2 April 2007, and version 1.1a was ratified on 11 January 2008. DisplayPort 1.1 allow a maximum bandwidth of 10.8 Gbit/s (8.64 Gbit/s data rate) over a standard 4-lane main link, enough to support 1920×1080@60Hz

• DP 1.2: introduced on 7 January 2010, effective bandwidth to 17.28 Gbit/s support increased resolutions, higher refresh rates, and greater color depth, maximum resolution 3840 × 2160@60Hz

• DP 1.4: publish on 1 Mar, 2016.overall transmission bandwidth 32.4 Gbit/s ,DisplayPort 1.4 adds support for Display Stream Compression 1.2 (DSC), DSC is a “visually lossless” encoding technique with up to a 3:1 compression ratio. Using DSC with HBR3 transmission rates, DisplayPort 1.4 can support 8K UHD (7680 × 4320) at 60 Hz or 4K UHD (3840 × 2160) at 120 Hz with 30 bit/px RGB color and HDR. 4K at 60 Hz 30 bit/px RGB/HDR can be achieved without the need for DSC.

• Multi-mode Fiber: Fibers that support many propagation paths or transverse modes are called multi-mode fibers, generally have a wider core diameter and are used for short-distance communication links and for applications where high power must be transmitted.

•  Single-mode Fiber: Fiber that support a single mode are called single-mode fibers. Single-mode fibers are used for most communication links longer than 1,000 meters (3,300 ft).

•   SFP ： small form-factor pluggable , is a compact, hot-pluggable network interface module used for both telecommunication and data communications applications.

• optical fiber connector: terminates the end of an optical fiber, and enables quicker connection and disconnection than splicing. The connectors mechanically couple and align the cores of fibers so light can pass. 4 most common types of optical fiber connectors are SC, FC, LC,ST.

• SC: (Subscriber Connector), also known as the square connector was also created by the Japanese company – Nippon Telegraph and Telephone. SC is a push-pull coupling type of connector and has a 2.5mm diameter. Nowadays, it is used mostly in single mode fiber optic patch cords, analog, GBIC, and CATV. SC is one of the most popular options, as its simplicity in design comes along with great durability and affordable prices.

•   LC： (Lucent Connector) is a small factor connector (uses only a 1.25mm ferrule diameter) that has a snap coupling mechanism. Because of its small dimensions, it is the perfect fit for high-density connections, XFP, SFP, and SFP+ transceivers.

• FC : (Ferrule Connector) is a screw type connector with a 2.5mm ferrule. FC is a round shaped threaded fiber optic connector,mostly used on Datacom, telecom, measurement equipment, single-mode laser.

• ST: (Straight Tip) was invented by AT&T and uses a bayonet mount along with a long spring-loaded ferrule to support the fiber.

•   USB: Universal Serial Bus is a standard that was developed in the mid-1990s that defines cables, connectors and communication protocols. This technology is designed to allow a connection, communication and power supply for peripheral devices and computers.

•   USB 1.1: Full–Bandwidth USB, specification was the first release to be widely adopted by the consumer market. This specification allowed for a maximum bandwidth of 12Mbps.

• USB 2.0: or Hi–Speed USB, specification made many improvements over USB 1.1. The main improvement was an increase in bandwidth to a maximum of 480Mbps.

• USB 3.2: Super Speed USB with 3 varieties of 3.2 Gen 1(original name USB 3.0), 3.2Gen 2(original name USB 3.1), 3.2 Gen 2×2 (original name USB 3.2) with speed up to 5Gbps,10Gbps,20Gbps respectively.

• USB version and connectors figure:

| Type A| Type B| Mini A| Mini B| Micro-A| Micro-B| Type C
---|---|---|---|---|---|---|---
USB 2.0| | ****| | | | |
USB 3.0| | | | | | |
USB 3.1&3.2| | | | | | |

• NTSC : The colour video standard used in North America and some other parts of the world created by the National Television Standards Committee in the 1950s. NTSC utilizes an interlaced video signals.

• PAL: Phase Alternate Line. A television standard in which the phase of the colour carrier is alternated from line to line. It takes four full images (8 fields) for the colour-to-horizontal images (8 fields) for the colour-to-horizontal phase relationship to return to the reference point. This alternation helps cancel out phase errors. For this reason, the hue control is not needed on a PAL TV set. PAL, is widely used in needed on a PAL TV set. PAL, is widely used in Western Europe, Australia, Africa, the Middle East, and Micronesia. PAL uses 625-line, 50-field (25 fps) composite colour transmission system.

• SMPTE： Society of Motion image and Television Engineers. A global organization, based in the United States, that sets standards for baseband visual communications. This includes film as well as video and television standards.

•   VESA: Video Electronics Standards Association. An organization facilitating computer graphics through standards.

• HDCP: High-bandwidth Digital Content Protection (HDCP) was developed by Intel Corporation an is in wide use for protection of video during transmission between devices.

•   HDBaseT: A video standard for the transmission of uncompressed video (HDMI signals) and related features using Cat 5e/Cat6 cabling infrastructure.

•   ST2110: A SMPTE developed standard, ST2110 describes how to send digital video over and IP networks. Video is transmitted uncompressed with audio and other data in a separate streams.
  SMPTE2110 is intended principally for broadcast production and distribution facilities where quality and flexibility are more important.

• SDVoE: Software Defined Video over Ethernet (SDVoE) is a method for transmission, distribution and management AV signals using a TCP/IP Ethernet infrastructure for transport with low latency. SDVoE is commonly used in integration applications.

• Dante AV: The Dante protocol was developed for and widely adopted in audio systems for the transmission of uncompressed digital audio on IP based networks. The more recent Dante AV specification includes support for digital video.

• NDI: Network Device interface (NDI) is a software standard developed by NewTek to enable video-compatible products to communicate, deliver, and receive broadcast quality video in a high quality, low latency manner that is frame-accurate and suitable for switching in a live production environment over TCP (UDP) Ethernet based networks. NDI is commonly found in broadcastapplications.

• RTMP: Real-Time Messaging Protocol (RTMP) was initially a proprietary protocol developed by Macromedia (now Adobe) for streaming audio, video and data over the Internet, between a Flash player and a server.

• RTSP : The Real Time Streaming Protocol (RTSP) is a network control protocol designed for use in entertainment and communications systems to control streaming media servers. The protocol is used for establishing and controlling media sessions between end points.

• MPEG: Moving Picture Experts Group is a working group formed from ISO and IEC developing standards that allow audio/video digital compression and Transmission.

• H.264: Also known as AVC (Advanced Video Coding) or MPEG-4i is a common video compression standard. H.264 was standardized by the ITU-T Video Coding Experts Group (VCEG) together with the ISO/IEC JTC1 Moving Picture Experts Group (MPEG).

• H.265: Also known as HEVC (High Efficiency Video Coding )H.265 is the successor to the widely used H.264/AVC digital video coding standard.Developed under the auspices of ITU, resolutions up to 8192×4320 may be compressed.

•   API: An Application Programming Interface (API) provides a predefined function which allows access capabilities andfeaturesorroutinesviaasoftware or hardware, without accessing source code or understanding the details of inner working mechanism. An API call may execute a function and/or provide datafeedback/report.

• DMX512: The communication standard developed by USITT for entertainment and digital lighting systems.The wide adoption of the Digital Multiplex (DMX) protocol has seen the protocol used for a wide range of other devices including video controllers. DMX512 is delivered over cable of 2 twisted pairs with 5pin XLR cables for connection.

• Art Net: An ethernet protocol based on TCP/IP protocol stack, mainly used in entertainment/events applications. Built on the DMX512 data format, ArtNet enables multiple “universes” of DMX512 to be transmitted using ethernet networks for transport.

• MIDI: MIDI is the abbreviation of Musical Instrument Digital Interface. As the name indicates the protocol was developed for communication between electronical musical instruments and latterly computers. MIDI instructions are triggers or commands sent over twisted pair cables, typically using 5pin DIN connectors.

• OSC: The principle of Open Sound Control (OSC) protocol is for networking sound synthesizers, computers, and multimedia devices for musical performance or show control. As with XML and JSON, the OSC protocol allows sharing data. OSC is transported via UDP packets between devices connected on an Ethernet.

•   Brightness： Usually refers to the amount or intensity of video light produced on a screen without regard to colour. Sometimes called black level.

•   Contrast Ratio： The ratio of the high light output level divided by the low light output level. In theory, the contrast ratio of the television system should be at least 100:1, if not 300:1. In reality, there are several limitations. Well-controlled viewing conditions should yield a practical contrast ratio of 30:1 to 50:1.

• Colour Temperature: The colour quality, expressed in degrees Kelvin (K), of a light source. The higher the colour temperature, the bluer the light. The lower the temperature, the redder the light. Benchmark colour temperature for the A/V industryinclude5000°K,6500°K,and9000°K.

• Saturation: Chroma, Chroma gain. The intensity of the colour, or the extent to which a given colour in any image is free from white. The less white in a colour, the truer the colour or the greater its saturation. Saturation is the amount of pigment in a colour, and not the intensity.

• Gamma: The light output of a CRT is not linear with respect to the voltage input. The difference between what you should have and what is actually output is known as gamma.

• Frame: In interlaced video, a frame is one complete image.A video frame is made up of two fields, or two sets of interlaced lines. In a film, a frame is one still image of a series that makes up a motion image.

• Genlock: Allows synchronisation of otherwise video devices. A signal generator provides a signal pulses which connected devices can reference. Also see Black Burst and Color Burst.

• Blackburst: The video waveform without the video elements.It includes the vertical sync, horizontal sync, and the Chroma burst information. Blackburst is used to synchronize video equipment to align the video output.

•   ColourBurst: In colour TV systems, a burst of subcarrier frequency located on the back part of the composite video signal. This serves as a colour synchronizing signal to establish a frequency and phase reference for the Chroma signal. Colour burst is 3.58 MHz for NTSC and 4.43 MHz for PAL.

• Colour Bars： A standard test pattern of several basic colours (white, yellow, cyan, green, magenta, red, blue, and black) as a reference for system alignment and testing. In NTSC video, the most commonly used colour bars are the SMPTE standard colour bars. In PAL video, the most commonly used colour bars are eight full field bars. On computer monitors the most commonly used colour bars are two rows of reversed colour bars

• Seamless Switching: A feature found on many video switchers. This feature causes the switcher to wait until the vertical interval to switch. This avoids a glitch (temporary scrambling) which often is seen when switching between sources.

• Scaling: A conversion of a video or computer graphic signal from a starting resolution to a new resolution. Scaling from one resolution to another is typically done to optimize the signal for input to an image processor, transmission path or to improve its quality when presented on a particular display.

• PIP: Picture-In-Picture. A small image within a larger image created by scaling down one of image to make it smaller. Other forms of PIP displays include Picture-By-Picture (PBP) and Picture- With-Picture (PWP), which are commonly used with 16:9 aspect display devices. PBP and PWP image formats require a separate scaler for each video window .

• HDR: is a high dynamic range (HDR) technique used in imaging and photography to reproduce a greater dynamic range of luminosity than what is possible with standard digital imaging or photographic techniques. The aim is to present a similar range of luminance to that experienced through the human visual system.

• UHD: Standing for Ultra High Definition and comprising 4K and 8Ktelevision standards with a16:9 ratio, UHD follows the 2K HDTV standard. A UHD 4K display has aphysical resolution of3840x2160 which is four times the area and twice both the widthandheightofaHDTV/FullHD(1920×1080) video signal.

• EDID: Extended Display Identification Data. EDID is a data structure used to communicate video display information, including native resolution and vertical interval refresh rate requirements, to a source device. The source device will then output the provided EDID data, ensuring proper video image qality.

 Revision History

The table below lists the changes of ASK nano User Manual.

1.  Modify RX and TX pairing method
2. Add Meeting Invitation
3. Add a cable to connect TX and Android phone.

| Sylvia
V1.2| 2021-04-22| 0002#|

1.  Revise description

| Sylvia
V1.3| 2021-06-08| 0003#|

1. Add FAQ

| Sylvia
V1.4| 2021-11-18| 0004#|

1. Add 2.4G wireless cable connection diagram
2.   Add FAQ–7

| Sylvia

All information herein is Xiamen RGBlink Science & Technology Co Ltd. excepting noted. RGBlink is a registered trademark of Xiamen RGBlink Science & Technology Co Ltd. While all efforts are made for accuracy at time of printing, we reserve the right to alter otherwise make change without notice.

References

• 使用“隔空播放”流播放视频或是通过镜像方式显示 iPhone 或 iPad 屏幕上的内容 - 官方 Apple 支持 (中国)

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