Specifications:It adopts bluetooth-compatible 5.0 chip, supports one-key answering, hands-free call.USB powered design, which is suitable for various devices convenient to use.It supports U disk, TF card and folder playback. (U Disk And TF Card Not Included)Item Name: Car MP3 PlayerModel: HK203Material: PCCurrent: 3.1A (FM transmitter)Voltage: 5VTransmitting Frequency: 87.5-108.0 (MHz)Frequency Response: 2402HzDistortion Degree: 0.1%Effective Range: 10-15 (m)Left And Right Channel Isolation: 98 (dB)Features: Hands-free Call, bluetooth-compatible 5.0, MultifunctionalSize: 75mm x 49mm/2.95 x 1.93 (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Car MP3 Player