Five Features: 1 Wireless Earphone Wireless reception from any electrical device with audio output such as full-channel TV sound, PC, game player, DVD player, VCD player, audio device, MP3 player, and CD player. Full-channel TV sound: What will you do if there is your favorite TV program but you worry about disturbing others. Use of the wireless earphone enables you to watch wonderful TV program with mute function. 2 Wireless Net Chat Tool It\'s a perfect audio-chat tool, provides infinite enjoyment. 3 FM Radio The headset can be used as FM radio separately, which search and lock channels automatically. 4 Wired Earphone Equipped with audio cable, the receiver can be used as a wired earphone. 5 Wireless Monitor Place the emitter near babies, old people and sick people who need care, and the sound of the cared people can be heard from the receiver. Specifications: Receiver * Frequency range: 86-108MHz * Reception Mode: FM * Distortion: 2% * Power Supply: 2 * AAA batteries (not included) * Color: Black * Net weight: 170g Emitter * Emission Frequency: 840.5MHz * Modulation Mode: FM * Emission Distance: 30m (with no inference) * Reception from any audio and visual equipment with audio out socket, such as TV set, audio device, DVD/VCD player, multimedia PC, etc. * Power Supply: 2 * AAA batteries or 4.5 DC (not included battery and power cable) * Color: Black, White * Product size: 200*80mm (H*D) * Net weight: 135g Package: * Package dimensions: 215*207*87mm * Package weight: 487g Package including 1 * New Wireless Headphones 1 * FM Transmitter (stand) 1 * Audio Cable