If you are looking for a professional and audio receiver transmitter, then your research is over here. That's because our product can meet your need. Adopted of , it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience. Features -Color: Black -Material: high strength fireproof PC -Size: 9.20X6.50X2.00cm/3.62X2.55X0.79in Version: 5.0 Music format: MP3/ /FLAC/WAV/WMA Output port: AUX, Input port: , AUX, , optical Transmission distance: about 10m Battery: 500mAh - , computer, , audio, power amplifier and other equipment to realize transmission. - 10 meters barrier free transmission, can cover the whole room easily. - Receive , transmit to audio through connection, very practical to use. - The adapter can be paired to many devices, such as desktop computer, notebook, etc. - You can get more stable and consequent music experience without . Package list: 1 x Host 1 control 1 x 3.5mm audio cable 1 1 x Charging cable 1 x Manual