Dual channel headphone, stereo A channel
Frequency for right channel :2,8 MHz
Frequency fro left channel :2,3 MHz b channel
Frequency for right channel :3,8 MHz
Frequency fro left channel :3,2 MHz
Frequency response :30 - 20.000 Hz
Receiving range :10 meter max with volume button
A.B. off button, led statues light work on 2 AAA batteries (not included)