Description:? Description: Function: 2 in 1 Wireless headphone FM radio function With bracket on the transmitter Receive all-channel sound accompany from TV Computer DVD MP3 MP4 and other electronic porducts with audio output Transmitter Specification: Transmitting frequency: 84~87MHz Power supply: AAA DC 1.5v batteries Receiver Specification: Receiving frequency: 84~108MHz Max receiving range: 18m FM radio frequency: 88~108MHz Power supply: AAA DC 1.5V batteries 2pcs