Feature:  1. This procuct is a Bluetooth device which is integrating receiving and transmitting.  3. Free to send and receive all audio.  4. You can transfer music from your phone to your home audio device.  5. A television, CD player, MP3 or any other audio device may also be sent to a Bluetooth enabled speaker or headset.  6. The product uses low latency technology.  7. It also supports real-time transmission of audio from online games, television and movies.  8. This product contains rechargeable batteries.  9. Super long endurance, perfect solution to audio device limitations.  10. The functions of various audio devices.     Specification:  Bluetooth protocol support: BT 4.2 a2dp and avrcp.  Transmission distance: 10m open space.  Battery standard: 160ma.  Working hours: 6 hours.  Charging time: About 2 hours.  Charging input voltage: DC 5V.  Input / output link mode: 3.5mm stereo interface.  Receive mode: Supports one - drag two functions.  Launch mode: Supports one - drag two functions.  Compatibility: Android system, iso system mobile phones, tablets and other Bluetooth devices,  and audio input interface with audio equipment.     Package  Included:   1xTX90Bluetooth 2-in-1 Adapter.  1xRCA Cable.  1xAUX  Cable.  1xUSB Charging Cable