Super eight function(6 in 1):1. Wireless frequency locking receiver; 2. Wireless chatting;3. wireless monitoring; 4. FM radio;5. Impressed bass sound; 6. Wire stero headphone;7. Charging; 8. Mute in week signal.Reception from any audio and visual equipment with audio out socket， such as TV set，audio device， DVD/VCD player， multimedia， PC， MP3， walkman， etc.Feature:Wireless frequency locking receiver:Wireless reception from any electrical multi-media device with audio output，Such as full-channel TV sound，PC，Game player， DVD ，VCD， audio device， MP3， MP4 etc.FM Radio:The headphone can be used as FM radio separately， search and focus channels automatically.Wireless chatting:A perfect audio-chat tool， enjoy surfing fun.Wireless Monitoring:Place the emitter near baby， old people and sick people who need care， The sound of the cared people can be heard with the receiver， for easy care.Wire stero headphone:Equipped with audio cable， the receiver can be used as a wired headphone.Mute in week signal:Use of the wireless headphone enables you to watch wonderful TV program with mute function.Impressed bass sound:When the emitter is turned on， press the bass button for 3 seconds to enter the bass mode(bass function is turned off by default). The intensity of the sound will increase 8-10db under the bass mode. Impressed Bass sound for great enjoyment!Charging function:The Transmitter can charge the Rechargeable AAA Battery， please install the Rechargeable Battery inside the transmitter and switch the button to "OFF" position， then connect the Wall Power Adapter(4.5~5V)If no rechargeable battery is installed inside， the transmitter does not support charging function. The wall power adapter is not included in this package.Frequency: 86 +/- 0.5MHz.Power supply: 2 x AAA batteries.Frequency range: 87.6 - 108MHz.Reception Mode: FM.Distortion: <1%.Receiver Power supply: 2 x AAA batteries( All Batteries not included ).Package:1 x emitter ( Original packaging )1 x receiver(headphone).1 x instruction manual.2 x audio cable1 x Audio adapter cable