- Volume Control
- Microphone
- Frequency range: 20HZ –20kHZ
- Driving coil / Diameter: Ф40mm
- Rated sensitivity: 108dB+3dB
- Impedance:32Ω,± 15%
- Speaker diameter: 40mm
- System requirements: USB 2.0 Port
- Load impedance: 2.2KΩ
- Maximum power:30mW
- Current:<100mA
- Voltage:DC3V