Description
Audio: 7.1 Surround Sound
Speaker Diameter: 53mm
Speaker Sensitivity: 111±3dB
Speaker Frequency Response: 20~20KHz
RF Frequency: 2.4GHz 2403-2477MHz (ISM Band)
Microphone Type: Omnidirectional
Noise Reduction: Yes
Microphone Sensitivity: -38±3dB
Microphone Impedance: <2.2KΩ(Max)
Microphone Diameter: ∅6 x 2.7 mm
Frequency Response: 100~10KHz
Charging Voltage: DC 5V 500mA
Charging Time: 3 Hours
Battery Capacity: 3.7V 1200mAh