welcome to my shop. There are four types of headphones sold in my link. The price difference comes from the weight of the headphones and the chips used. The four earphones are of excellent quality and cost-effective. If you want to use headphones yourself,you can choose the first three earphones, it is recommended that you do not use them with private packaging; If you are going to give gifts or sell them wholesale, it is recommended that you choose the fourth one. Sending with a box can make the goods look more exquisite.
Description of basic parameter
1. Model: TWS
2. Operating voltage: 3. 3 V-4. 2V
3. Hours of service: about 60 hours
4. Battery capacity: 40mA/300mA
5. Length of use: 3. 5-4 hours
6. Bluetooth version:v5. 1+EDR
7. Transmission range: 2. 40 GHz-2. 48 GHz
8. Trumpet: 8-10 mm Copper Ring Composite Horn
9. Sensitivity: 98±3 dB
10. Communication distance: Effective distance 15 meters
Description of functions
Switch between Chinese and English,double-click the button when
Bluetooth is not connected.
1. The headphone pair is successfully operated (playing songs, calling,
etc. . ) .
2. Call: Bluetooth connection state, pull the phone short press answer,
long press 1. 5 seconds to release the refusal, short press hang up
under the state of the call, double-click the button to redial the most
recent call or unanswered phone number.
3. Song: Play the music interface in the connection state,short press a
button to pause, long press the left and right ears next.
4. Headphone power: Headphone voltage is less than 3. 3 V low power
prompt, less than 3. 2 V automatic shutdown,charging the headphone
less than 4. 0 V, 4. 2 V full.
5. UNCONNECTED,long press up and down,double-click back to pull,
three-click Wake Siri,four-click volume plus or minus.