BT66 Wireless Bluetooth Car Kit MP3 Player FM Transmitter SD LCD Dual USB Charger is a practical must-have tool for all car owners. It perfectly integrates the FM transmitter with MP3 player, hands-free calling and USB charger for an easy and safe road trip experience. It can read and play MP3 files from a micro SD card or USB flash drive, and stream audio to a car stereo. The built-in microphone and Bluetooth allow for convenient hands-free calling, which automatically returns to music playback when the call is over. Definitely worth buying! feature: Integrate FM transmitter with MP3 player, hands-free calling and USB chargerRead and play MP3 files from a micro SD card or USB flash driveWirelessly stream audio to car audio systemBuilt-in microphone and Bluetooth for convenient hands-free callingGreat sound quality with DSP and echo cancellationBuilt-in 3.5mm line input jack, supports external audio equipmentLED screen displays the current frequencyCar cigarette lighter powered, easy to useProvides two USB ports for phone chargingMultipoint technology to pair and stay connected with two phones at the same timeSmall and lightweight, it can be easily installed anywhereIncludes a remote for added convenience Specification: color: blueFrequency range: 87.5-108. 0MhzOutput frequency: 20Hz-15KHzSupply voltage: 12-24VRated current: 90mAPower consumption: 1WWorking temperature: 0-50 degreesSupported file formats: MP3/WMAUSB charging output: 5V/2. 1AMusic format: MP3 formatUSB maximum support: 32GMicro SD maximum support: 32GBluetooth version: 2.1 EDRTransmission distance: 10mOperating system: Win XP/Win Vista/Win7Signal-to-noise ratio: R60dBDimensions: 9x7.5x3.5cm (LxWxH) Weight: 90 gramsColor: random colormaterial: plastic Keywords: car MP3, car MP3, bluetooth, USB, AUX, plastic material: plastic page weight