Product Name: Bluetooth Car Kit FM Transmitter MP3 Player with LED Dual USB 4.1A Quick Charger Voltage Display Micro SD TF Music Playing Model NO.: HY82 Format: MP3/WMA Audio Output: Digital Audio Coaxial Voltage: 12/24V Certification: CE, RoHS, ISO, SASO, FCC, BQB Placement: Dashboard Combination: MP3 / MP4 Players Type: Car MP3 Trademark: FOXDAK Origin: China Product Description Bluetooth Car Kit FM Transmitter MP3 Player With LED Dual USB 4.1A Quick Charger Voltage Display Micro SD TF Music PlayingFeatures:Support Bluetooth hands-free phone calling via its built-in microphone.Support A2DP function. Music will be played directly while the mobile phone is connected.Built-in dual USB 5V / 4.1A output, 3.1A USB port support smart charging, it is available for charging most kinds of devices in car.LCD display of frequency and voltage.English voice number prompt.Support SD/TF memory card and USB flash drive (1A USB port) reading, can play music files on MP3/WMA/APE/FLAV/WAV format.With a support of FM channels, this car MP3 wireless FM transmitter lets you take a break from your regular music.Plug the MP3 player into cigarette lighter of your car directly, easy to use and carry.Specification:Material : ABSIteem Color : BlackDisplay Color : BlueBluetooth Version : Bluetooth 4.0 (support A2DP/SBC/AAC/HSP/AVRCP)Files Supported : MP3/WMA/APE/FLAV/WAVFM Frequency : Range 87.5-108.0MHzSNR 85dB (FM: 65dB)Effective Distance : 5m / 16.4ftWorking Voltage : DC 12V-24VUSB Output : 5V / 3.1A (Smart IC), 5V / 1APort 2*USB 2.0; 1*TF card input, up to 32GB maxItem Size 3.8*4.6*7.8cm / 1.5*1.8*3.1" (L*W*H)Package List:1*Car player1*English user manual