Wireless Bluetooth MP3 Car Kit FM Transmitter Dual Handsfree ChargerFeature: * Bluetooth 4.2 version, support voice prompts, support caller number * Intelligent recognition of all types of Android and Apple mobile phones and other devices, support fast USB charging, 3 , 6A load * Support FM full frequency broadcast, 206 frequency points * Digital display, battery voltage detection * Support external disk for music playing, support MP3 / WMA / WAV / APE / FLAC music format, support memory with auto power off function * Technical support call cancellation and noise canceling (CVC) * Support A2DP stereo Bluetooth music player USB interface: top USB2.0 speed Display: LED display Hard disk capacity Support U:? 32 GB Power supply: DC12V-24V Supported file types: MP3 / WMA / FLAC / WAV / APE operating current: 50-100mA DC12V Bit rate: 64-320 kbps G FM frequency range: 87.5-108 MHz (100 kHz increments) Signal to noise ratio: 85dB (FM: 65dB) Harmonic distortion: & lt; 0.05% (FM <0.1%) Operating temperature: 0 C to 60 C Launch distance: <5 meters This product is a hands-free MP3 player with Bluetooth car charger, using a Bluetooth 4.2 chip of Professional quality high performance, bluetooth connection music can be MP3 from your phone through wireless audio transmission from your car, you can also talk for free on the call. You don't need to modify your car to let you enjoy music on the go.Package content: 1 * host 2 * instructions