This is the new premium version i15 TWS that was launched on December 1. It new adds the following

Features:
1. New Rename (When you connect the product, the Bluetooth name display is TWS, then you can change the name to i15 or Other any text)
2. New Find a location (Open Find APP)
3. About the version serial number
4. Volume control (Touch Three clicks)
5. Improve the harsh sound of the old version to protect ears and hearing.
6. Expanded battery capacity: Earphone 30mAn to 35mAn, Charging box 200mAn to 300mAn

Features:
1. Driver: 15mm
2. Impedance: 32 OHM
3. Bluetooth version: Bluetooth v5.0+EDR, Jerry 5.0 solution
4. Bluetooth use frequency band: 2.4GHz
5. Power level: CLASS II
6. Output power: 30mW
7. Bluetooth distance: 10~15 meters barrier-free
8. Working voltage range: 3.0V-4.2V
9. Microphone sensitivity: -42dB
10. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol
11. Powerful noise cancellation circuit (active noise reduction)
12. Charging time is about 1 hour (power indicator charging: red light is on, full charge: red light is off (blue light is on).)
13. Product size: 53 * 44 *21mm
14. The net weight of the product is about 32g
15. Play time is about 150-180 minutes
16. Standby time is about 48 hours
17. Battery capacity 35MAH (charging compartment 350MAH)
18. Charging power supply: DC5V power supply [Lighting interface] (computer USB port, mobile phone charger, car charger)

How to use the earphone:
,play/pause music.
,3 points next song, click another one earbud 2 points volume +,3 points last song.
"SIRI"

Products include:
1 * set of Bluetooth headsets
1 * charging box
1 * charging cable
1 * User Manual