SincereetaliFeatures: Smartphones can be connected to the device via BT. Comes with a 3.1A fast charging port to provide simultaneous high-speed charging for the driver and passenger. Support U disk, TF card and mobile phone music playback Hands-free calling via BT connection, which ensures safe driving. Support navigation information playback. Support 87.5-108.0MHz full-frequency FM point transmission function. Specifications: BT Version: V5.0+EDR Frequency: 20h-20KHz Sensitivity: -92dBm Effective Range: 5M Voltage: 50.5V Output Voltage: 1000mA(Max) FM Transmitting Frequency: 87.5-108.0MHz Package Size: Approx. 120*90*50mm/4.72*3.54*1.97in Package Weight: Approx. 63g/2.22oz Packing List: 1 * Car MP3 Player 1 * User Manual(Chinese&English)