Specification :
Bluetooth version: 5.3 (Jieli 6973D4)
Supported protocols: a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gap\gatt\rfcomm\sdp\l2cap profile
Battery capacity of earbuds: 35mAh * 2 (with protective IC but protective plate)
Battery capacity of charging case: 300mAh (with protective plate) Diameter of drive units: 13mm
Charging time: about 1h
Talk time: 5h
Play time: 6h
Standby time: 300h
Sensitivity of horns: 115±3dB at 1KHz
Impedance of horns: 32Ω±15% at 1KHz
Sensitivity of microphone: – 38±1dB @1kHz 1Pa
Frequency response range: 20-20K Hz
Impedance: 200Ω Input standard voltage: DC 5V
Maximum transmission distance: 10m
Voice prompt: supported Multi-point connection: unsupported Wearing method: in-ear
User manual: Chinese and English
Interface: Type-C
Waterproof rate: IPX6
ENC depth of dual microphone: ＞- 35dB
