This transmitter adopts the latest Bluetooth 5.3 technology to provide you with a faster, more stable and smarter connection with less loss of sound quality. It only takes 1 second to complete the pairing, and there is no need to repeat pairing after successfully pairing with your device for the first time. The equipped 2 microphones collect your voice from all directions, while the latest CVC noise reduction technology blocks out more road noise, wind noise and other distractions. This ensures that both you and the caller can be heard clearly. Enjoy easy hands-free calling and driving with the push of a button. The Bluetooth transmitter is equipped with 30W Type-C and QC3.0 18W USB charging interface, which can quickly charge two devices at the same time. Product Input: DC 12-24V QC3.0 Output: 5V-3A, 9V-2A, 12V-1.5A PPS: 3.3-11V 3A, 3.3V-16V2A PD Output: 5V-3A, 9V-3A, 12V-2.5A, 15V-2A, 20V-1.5A Total Power: 48W(Max) Color: Black Size: 50 x 45 x 70mm Weight: 80g Package List: 1 x Bluetooth Car Adapter