【2-IN-1 Bluetooth Transmitter & Teceiver】OiDiPi Bluetooth audio transmitter supports transmitter and receiver mode. In TX mode, plug the Bluetooth transmitter into non-Bluetooth devices such as TV/PC/MP3/Airplane to transmit the audio to the Bluetooth headphone/speaker/sound bar; In RX mode, plug the Bluetooth receiver into wired speaker/headphone/car stereo and receive audio from cell phone/tablet/computer via Bluetooth. | 【Wide Compatibility】This 2 in 1 Wireless Bluetooth Adapter is compatible with devices of 3.5mm interface, including TV, car stereos, home stereo system, headphones, audio music streaming sound system, PC, speakers, projector, MP3, MP4 etc. | 【Easy To Use 】According to its status indicators, the bluetooth transmitter for headphones is quite easy to install and use. Just insert the Bluetooth 5.3 adapter into the AUX port of Bluetooth receiver or transmitter, then press and hold the multifunction button for 3 seconds to power on and ready for pairing. The adapter will automatically pair with and connect to your devices. | 【Stable Connection】 With Bluetooth 5.3 technology, OiDiPi bluetooth transmitter would reduce power consumption and offer a fast and stable transmission. The playtime of the wireless 3.5mm bluetooth transmitter is up to 10 hours in RX mode and 8 hours in TX mode. | 【What you get & Warranty Policy】 Bluetooth transmitter receiver x 1, charging cable x 1, 3.5mm audio cable x 1, user manual x 1. If you have any problems or are not satisfied with our products, please contact our customer support team, All Audio Transmitter/ Receiver Adapter from our company enjoy the lifetime after-sale service.