Main Features: 

• Brand: QKZ
• Model: DM10
• Material: Metal CNC Zinc alloy
• Speaker: 12mm NdFeB speaker
• Speaker Power: Rated input power: 3mW, Maximum input power: 5mW
• Impedance: 16Ω±15%
• Speaker Sensitivity: 100±3dB (at 1KHz 1mW)
• Speaker Frequency Response: 20-20K Hz
• Microphone Sensitivity: -42dB±3dB1kHz, 3V 0dB=1V/pa
• Microphone: Yes