Specification:
- Bluetooth version: 5.3 AD6973D4 (with power amplifier)
- Supported protocols: A2DP, HFP, AVRCP
- Battery capacity: 65mAh*2 (with protection board but IC)
- Battery capacity of charging case: 400mAh (with protection board)
- Charging time 1.5H
- Talk time: 7.5H
- Play time: 8.5H
- Standby time: 200H
Horn parameters
- Horns: 10 * 8.5 * 2mm, square
- Sensitivity: 119±2dB (800MV, 1KHz)
- Impedance: 30 Ω±15%Ω, at 1KHz
Output power: 21mW
- Microphone parameters
- Sensitivity: – 42dB±2
- Impedance: 400Ω
- Air conduction: reduce hearing damage without contacting
- Noise cancellation: single mic with DNS call
- Input standard voltage: DC 5V
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