The listing, New in Box: Stereo Wireless Headphones has ended.
Features
The transmitter transmits stereo signal to wireless headphone. The best receiving range is within 12 Feet away from transmitter with Antenna pulled. Two headphones can share the same audio source from one transmitter.
If you use the headphone alone, it becomes an FM radio receiver.
Specifications
Transmits Frequency: 86MHz
Maximum Transmit Distance: 30 Feet. Best uninterrupted reception is within 12 feet range from transmitter.
FM Radio Frequency: 88-108MHz
SNR: >35dB
Sensitivity: >22uv
Maximum Output Power: 0.5W