Feature:1. BT + Microfone2. Support hands-free calls. 3. Support advanced audio transmission mode.4. support the clock indicating while the power is off.5.High quality digital stereo FM radio supports FM1-FM2-FM3 from three band radio store and can preset 18 radio stations. (Radio)Frequency: 87.5-108MHz)6. support USB/TF card reader7. Support audio: MP3/WMA/WAV formats and so on.8. Media folder playback function9. remote control support.10.Electronic rotating volume control MP3 play supports pause/preview/repeat/random playback and 10 tracks up/down selections.11.Electronic type of bass/treble/left and right balance/front and rear balance volume control12.Front AUX audio input hole and rear terminal RCA audio output hole L/R.13.4 band high power output (4 high power speakers)