Specification of Wireless

~Wireless version: V5.0

~Operation distance: 10m

~Range of Frequency: 2.402 to 2.480GHz ISM band

~Sensitivity: -85dB

~PC interface: USB2.0

~Music format: MP3/WAV

TF card support: 128M-32GB

Rechargeable lithium battery: 400mAH

Specification of Headphone

~Type: stereo headphone with MIC

~Speaker:40mm

~Sensitivity: 115dB S.P.L at 1KHZ

~Impedance:32

~Frequency response: 20HZ-20KHZ

~Rated Power: 40mW

~Power capability: 100mW

~Cable Length: 1.5m

~Microphone Unit: 4.5mmx2mm

~Plug Type: 3.5mm stereo