Features:
Comfortable Ear-cushion
Direct Audio Line-In
RF Transmission Auto OFF for Power Saving

Specifications:
Carrier Frequency : 2.4GHz Digital
Operation Voltage : Transmitter AC/DC 5V Power Adaptor
Headphone 2 x1.2V AAA size Rechargeable NiMh batteries (included)
Frequency Response : 20Hz – 20KHz
Distortion: 0.5%
S/N Ratio: 80dB
Working Time: 12 Hours
Charge Time: 7.5 Hours
Working Range : 30 Meters