Feature: 1. Digital Display: FM Audio Receiver has a digital display to show radio channels and simple button controls, which can be easy control to play, pause music, answer calls. 2. Stable Transmission: FM Transmitter has an upgraded Bluetooth solution that ensures stable transmission without audio distortion, and increases the microphone to make calls clearer. 3. Multiple Charging Interfaces: with two QC3.0 PD30W fast charging interface, supporting simultaneous charging of three devices. 4. TPU Spring Wire: The Car Adapter Transmitter comes with a 1.5m TPU spring wire, making the interior of the vehicle clean and not messy. 5. Three Play Modes: Bluetooth compatible Audio Converter supports three music playback modes: Bluetooth, TF card, and AUX cable. Specification: Model Name: Bluetooth-compatitable Transmitter Bluetooth-compatitable version: 5.3 Product input: DC 12-24V PD-1 output: 5V=3A 9V=3A 12V=2.5A 15V=2A 20V=1.5A PPS: 3.3-1 1V-3.0A(Max) QC3.0 1/2 output: 5V=3A 9V=2A 12V=1.5A QC3.0-1+QC3.0-2 Output: 5V=4A PD+QC3.0 1/2 output: 5V=4A Total output: 30W Material: plastic colour: As shown Package Contents: 1 x MP3 player Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.