Product Card

TWS(true wireless stereo)earphones
V5.0+EDR
TWS-L21 Manual
Bluetooth version
V5.0 + EDR
Bluetooth protocol
A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3
Bluetooth Frequency
2.4GHZ
Battery capacity
The headset 50 mah. 300 mah rechargeable storehouse
Bluetooth Range
10-15metesrs with no obstacles
Talk/play time
Single earbud mode: 4 hours One pair earbuds mode: 3 hours
Key Functions
Power on
Long press the function button for 3 seconds
Play/Play pause
Press the function button
Previous piece
Double-click the vice machine
Next track
Double-click on the host
Add voice
Three strikes the host
Sound reduction
Three pair of machine
SIRI
Long press the function button for 2 seconds
Switch Chinese and English
In the pairing state, double-click the function button to switch
the prompt tone in Chinese and Englis
Instructions
Bluetooth pairing
Pick up the charging bin and start up automatically. After
starting up, the main and secondary engines will pair up
automatically. After successful pairing, the host machine will
flash red and blue alternately.This time the phone search
bluetooth name connection.
Charging
After the earphone alarm low power alarm sound, it is put into
the charging bin for charging. After charging, it is
automatically turned off. When charging, the red light is long
and the lamp is off when it is fully charged.
Answer calls
When calling, press the function button to answer the call and
then press the button again to hang up the call.
1. Please do not overuse this earphone or put it under heavy pressure, keep away from wet and
heat.
2. Far-high WIFI router and other high-frequency transmitting equipment will affect the signal
reception of the unit, resulting in the sound card breaking and disconnection.
3. Please use this product in the working environment (10m), and there should be no physical
barriers (such as wall, etc.) between the bluetooth device and the headset.