Key specifications/special features:
General specification:
Bluetooth version 5.0
Micro USB charging port
Supports: HFP, HSP, A2DP and AVRCP profiles
Operating range: up to 33ft (10 meters)
Talk time: 7 hours
Music playtime: 6 hours
Standby time: 300 hours
LED: red, blue
Supported features: support the iPhone battery display
Voice prompt
Certificate: BQB, CE, FCC, RoHS
Battery specification
Battery type: lithium polymer battery
Battery output voltage: 3.7V
Battery capacity: 100mAh
Full charging time: ≤2H
Audio specification:
Speaker size: φ12
Speaker sensitivity: 118dB±3dB
Speaker impedance: 16Ω
Speaker max input power: 5mW
Speaker frequency range: 20H-20KHz
Microphone frequency range: 20Hz-20kHz
Microphone sensitivity: -44dB±3dB