Features:Built-in Bluetooth and MicrophoneSupport hands-free calls.Support advanced audio transmission mode.Support the clock indicating while power is off.High-quality digital stereo FM radioSupport three-band radio store FM1-FM2-FM3, and can preset 18 radio stations. (Radio frequency: 87.5-108MHz)Support USB or SD or MMC card readerSupport audio: MP3 or WMA or WAV formats and so on.Support folder play functionSupport breakpoint memory and ID3 play.Support remote control.Rotary electronic volume controlMP3 play supports pause or preview or repeat or random play and 10 tracks up or down selections.Electronic type bass or treble or left and right balance or front and back balance volume controlMultiple EQ scenario mode choice: jazz, rock, pop, classical, etc.Support mute and equal loudness (LUOD) control.Front AUX audio input hole and rear terminal L or R audio RCA output hole.4 track high-power output (4 high-power loudspeakers)Work Voltage: DC 12VHOW TO SET TIME 1. change hour-minutea. short press (one second) CLK button ,Screen will show hours and minutesb. longpress CLK button till hours flash then you can rotate the voice button to adjust hoursc. short press (one second) CLK button ,minutes will flash then you can change minutes , finally press CLK to confirm and exit2. change year-month-daya. press CLK button twice to enter year-month-day screenb. longpress CLK button till year flash then rotate the voice button to adjust timec.short press CLK button ,month will flash then rotate the voice button to change the monthd. short press CLK button ,day will flash then rotate the voice button to change the dayHOW TO RECEIVE FM 1. plug an available antennainto BluetoothCar Stereo player2. ensuresignal is good.3. press AMS to search FMradio.Package included:1 x BluetoothCar Stereo player1 x Remotecontrol1 x User manual1 x Wire .