1.It Can be used in all digital products with audio input / output (3.5mm Stereo and Car ),just need to connect the audio output / input port. USB Bluetooth adapter can wireless connections between your Phone and TV,PC,Home stereo system,and other devices2.2 in 1 Wireless Adapter,durable and ,easy carrying and space saving. Suitable for computer,TV,projector (transmit mode) / speaker,earphone (receive mode)3.When the light is blue,it indicates the transmitter mode. When the light is red,it indicates the Receiver mode4.Low latency for high-fidelity stereo sound,-free content streaming in transmitter mode. Wireless Bluetooth adapter allows you to enjoy5.HiFi stereo music without wire restriction,providing you a more convenient and perfect experience6. advanced Bluetooth 5.0 technology, Long-range wireless range up to 10 (33 feet), more stable and faster signalProduct name:2 in1 Bluetooth Transmitter Receiver AdapterBluetooth Version:Bluetooth5.0+Supply Voltage:DC/5VInput Interface:3.5MM +USBOutput Interface:3 5MMDistance:10 Transmitter Range:Computer /TV /Projector /MP3Receiver Range:Ordinary speaker/ carProduct weight:about 8gcolour:BlackMaterial:ABSsize:42 x 25 x 11mmPackage Contents:1 x Bluetooth 5.0 Audio Transmitter/Receiver Adapter1 x 3.5mm Aux CableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.