Parameter of transmitter
1.Transmitter frequency: 863.3/863.9/864.5MHZ
2.Transmitter power: below 10dBM
3.Frequency warp of transmitting: +/- 70KHZ
4.Transmitting distortion: above 50db
5.SNR: above 70db
6.Frequency response: 30~13000HZ
7.Voltage supply:12V DC
8.Work current: 120mA

Parameter of Receiver 
1.Receiving frequency: 863.3/863.9/864.5MHZ
2.Receiving sensitivity: -100dBM
3.Receiving SNR: above 70dB
4.Receiving distortion: above 50dB
5.Receiving range: above 100m
6.Voltage supply :1.8~3V, 2 AAA batteries
7.Work current: 42mA

3D Surround infrared wireless headphone 

Parameter of transmitter
1.Transmitting frequency: Left track 2.3MHZ, Right track 2.8MHZ
2.Frequency warp of transmitting : +/- 50KHZ
3.Transmitting distortion: above 50db
4.SNR: above 70db
5.Available frequency: 30~15000HZ
6.Voltage supply:12V DC
7.Work current: 120mA

Parameter of receiver
1.Receiving frequency: Left track 2.3MHZ, Right track 2.8MHZ
2.Receiving sensitivity: 30dBU
3.Receiving SNR: above 70dB
4.Receiving distortion: above 50dB
5.Receiving range: above 10m
6.Voltage supply :1.8~3V, 2 AAA batteries 
7.Work current: 25mA