About this item: The built-in Bluetooth 5.0 chip provides a stable connection for music playback and hands-free calls via FM frequencies, making it faster to pair with compatible devices. The built-in microphone makes it easy to talk at the touch of a button. You don't need to hold your mobile phone. This hands-free calling car accessory makes your driving . Supports use of USB drives and memory cards Can be inserted into USB sticks and T-Flash cards for use, automatically accessing music on USB sticks and T-Flash cards. You can after inserting it. High-definition CNC display Monitor the car battery voltage in real time, keep track of the car's health condition, clearly visible when driving at night. There are three interfaces to choose from, mobile phones, tablet PCs can be at the same time, the charging speed is not affected. Can supply power to three devices at the same time to meet different charging needs. Intelligent Control Chip Built-in intelligent management chip, self-adaptive current, effective control of overload and heating, long-term charging without overheating, low temperature charging is . Product Description: Bluetooth version: 5.0 Input voltage: 12V-24V Output current: 5V-1, 0A or 5V-3.0A Frequency response range: 20Hz-15KHz FM frequency: 87.5-108.0MHz USB Output: QC3.0, PD Type-C Charging Operating temperature: 0-55 Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Material: ABS colour: Black Package Contents: 1 x Car Bluetooth 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.