FastTech M8 NFC Digital Display Bluetooth Adapter User Manual

June 6, 2024
FastTech

NFC Digital Display Bluetooth Adapter Operation Manual V1.0
Model: M8

Dear users, thank you for purchasing this product. Please read this operation manual carefully before you use the product. Wish you a pleasant usage experience.

Introduction

  • This product integrates the two functions of Bluetooth Receiving and Bluetooth Transmitting into one.
  • The Bluetooth 5.0 chip is a plug-and-play device that supports a variety of audio devices.
  • HD LED display can display working mode and status in real-time.
  • Support AUX 3.5mm/RCA audio input and output, support digital optical and coaxial input.
  • HD microphone supports wireless music, hands-free call and vehicle navigation.
  • The built-in 500mAh polymer lithium battery can be used while it is charged. You can use it to listen to music for 8-10 hours.
  • The product supports NFC wireless Bluetooth pairing (The mobile phone/tablet PC shall support NFC function)
  • The product can broadcast files of many audio formats in USB flash disk and TF card (Receive mode/Transmit mode)
  • It can be remotely controlled by infrared and ensure the effective distance of 5-8 meters (for Remote Control version only)

Parameters

Name: NFC Bluetooth Adapter
Model: M8
Bluetooth Version: V5.0+EDR
Frequency Range: 2400-2483.5MHz
Frequency Response: 10Hz-20KHz
Input Parameter: DC 5V-500mA
Weight: About 70g
Charging: Type-C ihour
Interface: AUX/RCA/Optical/Coaxial
Distance: About 10m
Battery: 3.7V/500mAh
SNR: >90dB
Peripheral Support: USB/TF card
Protocol: HFP/A2DP/AVRCP
Format: MP3/WAV/WMA/APE/FLAC
Size: L86xW65xH22 ( mm )

Interface diagram

Operation Instructions
Long press 3S: On/off Double click: Switching Signal Single click: Play/Pause Long press when calling: Answer Short press when calling: Reject
Long press: Volume- Single click: Previous song C)
Long press: Volume+ Single click: Next song

RX mode (Receiving mode)

It can be used to all devices with AUX (3.5mm) or RCA audio input interface, such as active speakers/old speakers/speakers/headphones/amplifiers/car speakers. This product can upgrade ordinary wired speakers to Bluetooth stereo and transmit musk from mobile phones to speakers and other devices wirelessly.

Connection Diagram

Step CI, : Connect/Power on

  1. Insert one end of the AUX/RCA audio cable to the adapter and another end to the audio input Interface of the active speaker.
  2. Long press (§) for three seconds to open the device. The display screen will be BLUE and RX and blue light will flash, showing that the adapter is in the receiving mode (If it is currently in TX mode, you can switch it through the toggle switch Switch to RX mode).

Step 2 : Pair with mobile phone (support NFC)

  1. Turn on Bluetooth of your phone and make a related selection from the list and connect -148″ . After paired, RX and the blue light will be always on, indicating that the adapter has been successfully paired with the mobile phone.
  2. 0pen the music software of the mobile phone and the sound can be transmitted to the active speaker through Bluetooth. At this time, the blue light will flash. Support operations, such as play/pause/previous song/next song/volume+/volume-.

Hint:

  1. With HD microphone, the product can be automatically switched to the CALL mode after the mobile phone is connected successfully or the music is played. The screen will display CALL and you can answer/refuse/hang up (Refer to Operation List).
  2. The product will save the paired devices and automatically connect your phone or tablet when it is turned on again after it is paired successfully before.
  3. Supports NFC connection. After the mobile phone or the tablet PC with built-in NFC function is placed near the NFC induction area for 2 seconds, an NFC connection window will be pop up, Click ‘OK”.
  4. This mode supports USB-Disk and TF card play. it can automatically identify signal sources and play related songs. You can double-click ® to switch signal sources. The device will broadcast current signal sources invoices. There is no need to unplug the signal source line repeatedly.
  5. Ensure that the audio input interface (Input) of the device is properly connected. Interface errors will result in no sound or other failures.
  6. if paired fail, please turn off mobile phone Bluetooth or clear the Bluetooth list of the mobile phone before you restart the Bluetooth adapter. You can repeat doing the above pairing steps and have a try again.

TX mode (Transmitting mode)

This mode is only suitable for devices with audio output interfaces (AUX/RCA/Optical/Coaxial), such as desktop computer/laptop/TV/ power player/projector and other devices). It can instantly upgrade Bluetooth function and connect Bluetooth headset or Bluetooth speaker wirelessly.

Connection Diagram

Step ® : Connect/Power on

  1. Insert one end of the AUX/RCA audio cable to the adapter and another end to the audio input interface of the computer or TV.
  2. Long press C) for three seconds to turn on the device and the display screen will display LINE. At the same time, TX and the red lights will flash to show that the adapter is in the transmitting mode (If the current mode is RX mode, otherwise you can turn on Switch to TX mode.)

Step(g): Bluetooth Pairing

  1.  Place the product near the Bluetooth Headset( < 10m) ; make sure that the adapter is turned on and in Transmitting Mode.
  2. Turn on the Bluetooth headset or speaker and make sure that they are waiting for pairing. Wait for them to be paired automatically.
  3. After successfully paired, TX and the red light will be always on. At this time, sounds of the computer/TV can be transmitted to the Bluetooth headset or Bluetooth speaker wirelessly.

Hint :

  1. The device will automatically save the paired devices. After your Bluetooth headset is successfully paired for the first time, it will be automatically paired when the product is turned on again.
  2. This mode supports the five transmitting ways of AUX/USB-Disk/ TF card/Optical/Coaxial transmission. After corresponding signal sources are inserted, you can switch signal sources by double-clicking C) key.At the same time, the device will broadcast current signal sources. There is no need to repeatedly plug and unplug the signal source/lines.
  3. Please ensure that the audio output interfaces (Output) of computer TV and other devices are connected correctly. Interface errors will lead to silence or other faults.
  4. If fail paired, please restart the Bluetooth headset and this device and try repeating the above matching steps. Due to differences in Bluetooth protocols between different devices, it is normal to have different pairing times.

NFC Functions

NFC connection is available in RX mode. This function can only be used to mobile phones with NFC functions. The operation is as follows:

  1. Open NFC function of mobile phone or other devices.
  2.  Put the NFC induction area of the mobile phone close to the NFC induction area of M8 Bluetooth adapter at zero distance for about 2 seconds. When the NFC connection window pops up, click it for further connection.

Remote Control

Note: This function can only be used for the remote control versions. The effective linear remote control distance is about 5-8 meters.
Common Problems
In the case of the following problems, you can solve them by using the following methods.

  1. Display screen of the device is not properly bright? Answer: Please check whether the device is properly plugged into the Type-C charging cable and whether the battery works.

  2. Fail to enter the Receiving/Transmitting? Answer: Toggle the mode switch in any mode to switch to the next mode and the LED screen will display the current Bluetooth mode, such as RX/TX.

  3. Fail to be connected with a Bluetooth device (Bluetooth headset)? Answer: Put the Bluetooth adapter closer and start the device again and connect the Bluetooth headset and other devices again. If that fails to work, you can restart the adapter and the Bluetooth headset to ensure that they have entered the waiting state for pairing.

  4. No sound output?
    Answer: Please check whether the 3.5mm audio line is connected correctly; the audio line shall be inserted to the audio output interface under the transmitting mode and the audio line shall be inserted to the audio input interface under the receiving mode. At the same time, please check whether all current signal sources are correct. If wrong interfaces are found, please double press C) to switch to the correct signal sources.

  5. No sound after the digital optical/coaxial cable is inserted? Answer: Determine the current working mode; if it is RX receiving mode, digital fiber/coaxial input will be switched to AUX/RCA analog signals, which will be output to the ordinary speaker through the wire. If TX transmitting mode is used, the digital optical/coaxial input will be switched to analog signals, which will be output to Bluetooth headset Bluetooth speaker

  6. What devices can be used?
    Answer: All devices with audio input or output interfaces, such as computer, television, active soundbox, home loudspeaker, office acoustics, vehicle, power amplifier, projector, wired earphone.

LED Display Screen

Operation List

Keys Operation Instructions

Functions| **.**| |
---|---|---|---
On/Off| long press 35| /| /
Mode Switch| Toggle switch to switch left and right
Signal Switch| double click| /| /
Play/Pause| single click| /| /
Volume| /| long press: volume-| long press: volume+
Song Switch| /| long press: prey song| short press: next song
Answer/Hang-up| short press: when an incoming call| /| /
Reject Call| long press: when an incoming call| /| /
Restore settings| /| Press it: five seconds| Press it: five seconds

Description of Indicator Lights

Blue Light Red Light
Flashes Always on
Connecting Connected

Digital Optical/Coaxial function

  • The device supports digital Optical and Coaxial input and can convert digital signals to analog audio signals. Note: Optical/Coaxial output is not supported.
  • In the RX or TX mode, the Optical/Coaxial input can be converted into AUX/RCA analog signal, which can be wired to the speaker or transmitted to the Bluetooth headset.

Warm Reminder

  • This product can meet UN38.3 transportation certification and MSDS safety certification
  • This product is supplied by standard 5V±5% power;it will be damaged and safety risks will appear if the power exceeds the standard voltage range.
  • The device can only be used in areas with an altitude of 2000m and below and areas with non-tropical climate conditions.
  • This product shall not be used near magnets or products with strong magnetic fields, otherwise, its normal functions will be affected or the product may be damaged.
  • Do not drop or strongly hit the product; your rude usage may damage the product.
  • Please do not use this product in extremely high or low temperature, damp or corrosive environments.
  • This product has a built-in lithium battery. Please do not discard or throw it into the water/fire and do not expose it to the sun, fire or similar overheated environments.

Reset

In any mode after starting up, press the e CY and -0- keys at the same time for about 5 seconds, and the display shows If 8888 is displayed, it means that the factory settings have been restored successfully.

Packing List

  1. Bluetooth Adapter xl
  2. AUX 3.5mm Audio Cable xl
  3. RCA Audio Cable xl
  4. Type-C Charging Line xl
  5. Instruction Manual xl

FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

Caution: Any changes or modifications to this device not explicitly approved by the manufacturer could void your authority to operate this equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
RF Exposure Information
The device has been evaluated to meet general RF exposure requirements. The device can be used
in portable exposure conditions without restriction.

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