Features 1. Latest Bluetooth V5.0: Bluetooth 5.0, with 2x data transfer speed, 4x transmission range, 8x broadcast massage capability, better audio quality, and compatibility with V1, V2, V3, V4, V4.1, V4.2 Enjoy faster data transmission speed and more stable connection between the device and audio receiver using transmitters. 2. Three music playback modes: With this car music player, you can play clear stereo music through Bluetooth/USB flash drive (≤ 32GB)/microSD card (≤ 32GB). Supports music in MP3/WMA/FLAC/APE/WAV formats. 3. Hands free calling: With echo cancellation and noise reduction technology, you can make calls smoothly and clearly using a Bluetooth transmitter. Simply press the  "Phone" button to answer, hang up, reject, or redial calls, and seamlessly switch between incoming calls and music. Free your hands and drive safely. 4. Two USB ports: This Bluetooth transmitter has two USB charging ports, a fast charging port (5 V/2.4 A) for efficient device charging, and a standard charging port with music symbols (5 V/1 A) for reading USB U data carriers. You can also charge two devices simultaneously. Enjoy stereo streaming in the car while charging your phone. 5. Easy setup: Connect this transmitter to the cigarette lighter, set the car radio to an empty transmitter (76.0-108.0 MHz), and adjust the  transmitter to the same frequency. Pair your phone with  transmitter via Bluetooth and enjoy music. Specification Material: ABS Color: Black Size: 10.5 x 7.5 x 6 cm Weight: 65 g Package Include: 1x Car MP3 player Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.