1. Chip: AB5756T Silicon Mark
2. Speaker: 13mm 32ohn
3. Battery: 35 + 230mAh
4. Bluetooth name: C09-TWS
5. English prompt sound
6. Playing time: 80% volume for about 3 hours
7. The warehouse can charge the headphones 3 times: 3 times
TPC charging connector, motherboard with OVP