Wireless TWS Bluetooth Headset Long Endurance Small Ears

Type: true wireless headphones
Monomer: 10mm moving coil
Frequency response: 20Hz~20kHz
Bluetooth version: 5.0+EDR
Bluetooth support protocol: AAC, SBC, A2DP, AVRCP, HSP, HFP, SPP, HID
Transmission frequency: 2.4GHz~2.48GHz
Maximum effective transmission distance: 10m (straight line without barrier)
Battery capacity and charging cycle: 3.7V 55mAh, 300 times or more 80%
Working time: 4~5 hours of continuous play
Standby time: 100 hours
Microphone: Yes
Charging terminal: USB Type-C
Carrying box battery capacity: 450mAh
Carrying the box to charge the headset: 4~6 times
Carrying box battery standby time: 60 days