With Bluetooth-compatible hands-free and echo cancellation function, the car player brings you an excellent call experience. You can directly read the audio files in the mobile phone through Bluetooth-compatible, TF card and U disk. What this product supports are that hands-free calls, voice prompts, caller ID, U disk playback, FM full frequency point transmission, and automatic memory function when power off. It is made of plastic and electronic component materials, which is durable and compact. The length of the player is 10cm, the width is 8cm, the height is 2cm. It is suitable compatible car, truck, vehicle, ATV and so on. Item Name: Car Music Player Material: Plastic,Electronic Component Color: Black, Silver Color (Optional) Working Voltage: 12-24V USB Output: 5V/2.5A Limit Voltage: 9-26V FM Frequency: 87.5-108mHz Play compatiblemat: WMA/MP3 Bluetooth-compatible Version: 2.1+EDR Bluetooth-compatible Audio: A2DP Bluetooth-compatible Transmission Distance: 10M Size Details: 10cm x 8cm x 2cm/3.94" x 3.15" x 0.79" (Approx.) Notes: 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. Package Includes: 1 x Car Music Player 1 x Aux Cable