eBay i21 True Wireless Stereo Earphones User Manual
- June 14, 2024
- ebay
Table of Contents
i21 True Wireless Stereo Earphones
User manual
Imported Wireless 5.3 chips
Compatibilty :
This product is compatible with all Bluetooth-enabled mailed phones
(OS/Android/Windows Phone),tablet PCs, Smart watches, notebooks and desktop
computers.
Activation & Warranty
Permanent replacement of damaged, defective item or missing components. Please activate via email below within 15 days. [email protected]
Package Accessories
2 Bluetooth Earbuds
1 Charging Case
1 USB Cable
1 User Manual
3* Pairs of Ear Tips
Noted:
Regular cleaning with a cotton swab is recommended, as shown in the image above. When the earbuds are not charging, you can use a cotton swab dipped in alcohol to gently wipe the bullet needle and copper column
Product details
(1) Charging case digital display
(2) (10 Earphone digital display
(3) Charging pin (4) Microphone
5) (8) Earphone indicator
(6) (7) Touch Button
Usage
In order to get the best audio experience, please wear the left and right earphones correctly, and you will feel close, comfortable and stable in your ears after wearing them correctly. And please put your cellphones in the same side of left earphone during outdoor.
Powering ON:
Method 1: Take out the earphones from the charger case, and they will “power
on”
Method 2: When the earphones are OFF, Keep the touch button of both earphones for 3-5 seconds. The Led light flashes once and with a sound prompt: “power on”.
Powering OFF:
Method 1: The earphones will switch off when put into the charger case.
Method 2: Keep the earphones touch button pressed for 3-5 seconds, until
the Blue LED flashes with a sound prompt: “power or
Note: lf the earphones were disconnect with the device, the earphones
will be power off automatically after 5mins.
Stereo Mode
- Taking the earbuds out of the charging box, they will auto power on. After a few seconds, the left and right earbuds will auto connect each other. When the TWS earbuds are connected to each other, the LED light will flash quickly. If they connect successfully, the earbuds LED light will flash slowly.
- Open the bluetooth devices page inside settings. Search for 121″ and select it to pair, the Earphone lights be off after the earphones connected with device.
Note: lf the earphones connected the device once, and the bluetooth
functions of device was open ,the earphones will be reconnected with last
device automatically.
Reset Mode:
In the power-on state, after 5 quick clicks LJR, the earphones is turned off
(the blue light is off), and the pairing information between the earphones and
the mobile phone is cleared after restarting.
Play Music
- Touch the button once to Pause/Play.
- Keep press the touch button for 1 seconds and release it (“L” for previous song, “R” for next song)
- Touch the button twice to adjust the volume(“effort decreasing ,”R” for increasing)
Voice Assistant
Touch the button three times to activate the Sid voice assistant
Calling
- When a call comes in, short press one of the touch buttons in order to answer the call or long press it to reject it.
- During a phone call, short press the earphone button to end the call and the earphone will resume its previous working state.
- During a call, the volume can be controlled via the mobile phone.
- Stereo mode: both ears have voice.
Specifications
- Model : i21
- Bluetooth version: V5.3
- Voltage rating and energy capacity: 3.7V/400mAh
- Battery capacity: 263.7V/45mAh
- Earphone Charge time: Around 1.5 hour
- Music playing time: About 6-8h
- Bluetooth profiles supported: HFP/A2DP/AVRCP
- Operating frequency: 2.40 GHZ-2.48 GHZ
- RF Sensitivity: -92dBm
- Working temperature range: -10+50°C
- Maximum transmission range: -.C.15M
Packing list
Earphones 2
USB cable 1
Charging case 1
Earcups 4(1.1 S)
User manual *1
Important
- Host device is a connection between second device and your mobile phone, it is normal status under high power consumption.
- When not connected to any device, the earphones will power off automatically after 5 minutes.
- On iPhones the battery level of the earphones will be displayed in real time.
- When the earphones and the charger case are not used for long periods of time, it is recommended to keep them in a dry place and to recharge them at least every 2 months.
Fault
| Fault | Cause | Solutions |
|---|---|---|
| Can’t power on | Earbuds are low battery/ Crash | Charge the Earbuds/Keep the |
earphones touch button pressed for 8 seconds
No charging indication| The Earbuds are not well put into| Adjust Earbuds
position
Automatically shut down| Earbuds are low battery| charge the Earbuds
The Earbuds have an echo| The volume is too high or the environment is too
noisy| Adjust the volume or change position
The Earbuds are noisy| Outside environment interference or too far away from
mobile phone| Change position, or move closer to the mobile phone
Small sound| wearing Earbuds incorrectly or the volume is too low| Adjust the
Earbuds position or the mobile phone volume
Signal intermittent| Outside environment interference or too far away from
mobile phone| Change to better environment or
move closer to the mobile phone
Earbuds have no sound| Pairing unsuccessful between L and R Earbuds| Put the
earphones into the charger case