Features: 1.It sends the stereo sound of the TV to two pairs of headphones simultaneously. 2.Operate via USB power to permanently connect the transmitter to the TV's USB port. 3.The portable battery allows up to 10 hours of use between charges and is suitable for use with a tablet. 4.Strong connectivity. You can quickly reconnect as needed. 5.Simply through the headphone interferce, fiber output or composite audio output. 6.It wirelessly transmits audio to your headset and partners via cable without the need for a splitter. Specification: Condition: 100% Brand New Item Type: Bluetooth Transmitter Receiver Color: Shown as Picture Bluetooth Version: V4.0 Input Voltage: DC5V Input Current: 500mA Power: 185mw/h Battery Capacity: 650mA Working Time: 2-3h Effective Distance: Approx. 5-8 Meters/16.4-26.25ft PackageList: 1 x Host1 x Instruction Manual1 x Data Line2 x Power Cord