Microphone: 5.7mm * 5, 2mm ± 0.5mm
Voltage: 3.7V
Working current: 300mah-1000ma
Environmental noise: ≤ 60dB (a)
Receiver impedance: 150 ohm
Microphone sensitivity: 36 ± 3dB
Computer USB interface
Earphone cable: 1.8m ± 0.2m (curved rope)
Weight of single bare machine: 0.14kg
Single gross weight: 0.185kg
Single package size: 17.4cm * 14.5cm * 7cm