Vibration and LED lighting
* Speaker Impedance: 32Ω
* Drive Unit:40mm
* Max Power: 30mW
* SPL(sound pressure level):97bd±3db
* Microphone sensitivity: -55dB
* Frequency response:20-20KHZ
* Microphone size:4522
* Plug Type: USB/Φ3.5mm/Φ3.5mm+USB
*Cable length:2.0m