Feature: 1. MP3 player: MP3 player is suitable for 12V-24V car, Bluetooth compatible, stable transmission. It is compatible with U disk and TF card, plug and play, easy to operate. 2. Color screen: The large color screen displays songs and voltage, easy to read no matter in direct sunlight or at night. There are colorful pulsating notes on the screen, and listening to songs is even more enjoyable. 3. With remote control: The product is equipped with a remote control, more convenient to use. It supports remote control to switch songs, answer or hang up calls, and FM. 4. HD sound: MP3 player has built-in lossless audio decoding, supports HD lossless playback format, HD music, calling, and voice navigation. 5. Fast charging: It features dual USB ports, which can charge two devices at the same time and support fast charging. The product can swing freely up and down at 60°, saving space. Specifications: Color: Black Material: ABS Bluetooth compatible version: 5.0 Display: Colorful large screen Remote control power by: Built-in 1 x button battery Voltage: 12-24V USB output: DC5V 3.4A Interface: 2 x USB, U disk, TF card File type: MP3/FLAC/WAV Frequency: 87.5-108.0MHz Size: About 6 x 3.5cm/2.36 x 1.38inch(panel length x panel width) Package Includes: 1pc x FM transmitter 1pc x Remote control Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement. How to use: 1. Insert the product into the cigarette lighter, the screen flashes after power on. 2. Enter the mobile phone [Settings - Bluetooth - Connect C37], there will be a voice prompt when the connection is successful. 3. Adjust the frequency of the car radio to be consistent with the frequency of the player. 4. Turn on the music player on the mobile phone, play music and listen to the music with the car stereo.