A1

Speaker diameter: Φ40 milimeters
Impedance: undetermined
Headphone Sensitivity: undetermined
Frequency Response:20Hz-20,000Hz
Microphone: 6.0*2.7 MM
Microphone Sensitivity: -42DB ± 3DB
Microphone Impedance: 2.2k Ohms
Direction: the whole point
CableLength:2.2 meters ±5%
LED Working Voltage: DC5V±5%
Working Current: ≤100MA
Input Plug: General USB+3.5 mm jack

7.1 Virtual Surround Sound and Vibration are Option.