【Newest Bluetooth 5.3 Clearer Sound】 This bluetooth transmitter receiver 2 in 1 is Equipped with the latest Bluetooth version 5.3 technology, optimizing the transmission delay and connection defect problems of the old version. Our Bluetooth aux adapter will bring you a more stable and smarter connection with less sound quality loss. Up to 40ft working distance, you can enjoy music freely in daily use. | 【2-IN-1 Bluetooth Transmitter Receiver】 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. | 【Universal Compatibility】 Via the 3.5mm aux input/output jack, this device can connect to a wide range of audio devices, including old and new TVs, car audio systems, speakers Play Stations, and projectors; Bluetooth compatible with iPhone, iPod, and other Apple products. | 【Enhanced Square Mics】The square microphones work in tandem to collect your voice from all directions, and the upgraded CVC 8.0 noise reduction technology will block much more road noise, wind noise, and other distractions, ensuring that both you and the caller can hear very clearly. Simply press the call button and enjoy easy hands-free calling. | 【Working in Charging & Fast Charging】With 300mAh Battery Capacity, the built-in battery has a long battery life and can be fully charged within 45 minutes. When in the low battery state, the adapter can be plugged into power source to charge and work at the same time. | 【What you get & Warranty Policy】Bluetooth audio adapter x 1, USB C charging cable x 1, 3.5mm audio metal plate x 1, user manual. If you have any problems or are not satisfied with our products, please contact our customer support team anytime. We guarantee 12 month quality warranty and one month money-back for no reason.