Description Feature 1LCD display, high definition, waterproof designs, can be used freely outdoors. 2Support TF card/USB/FM/antitheft alarm, multifunctional and practical. 387.5108MHz FM radio receiving frequency, 2018000Hz MP3 player frequency response. 4Easy installation, no need of complicated tools, with remote control, simple to operate. 5The remote control has a built-in 150mAh CR2025 button battery, which has long life.Condition: 100% Brand NewItem Type: Motorcycle Audio SystemMaterial: MetalColor: As picture shownRemote Control Built-In Button Battery: CR2025, 150mAhFM Radio:Receiving Frequency Range: 87.5-108MHzNoise Limit Sensitivity: 16dBSignal To Noise Ratio: 45dBMP3-Player:Frequency Response: 20~18000HzSignal To Noise Ratio: 75dBDistortion Degree: 0.3%Rated Output Power: 7WRemote Control Distance: 15mWorking Voltage Range: -10-16VInstructions:1. Volume knob/power switch(1) After power on, short press this key to turn on. Long press this key to turn off, short press to switch to play mode when it is turned on.(2) Rotate clockwise to increase the volume, and rotate counterclockwise to decrease the volume.2. Semi-automatic search for the previous song/to the low end(1) Play MP3 status, short press this button to select music upwards.(2) In radio mode, short press this button to search for a radio station to the lower end. After finding a radio station, stop searching and playing this radio station.3. The next song / semi-automatic search for high-end channels(1) Play MP3 status, short press this button to select music downwards.(2) In radio mode, short press this key to search for a radio station to the high-end. After finding a radio station, stop searching and playing this radio station.4. Clock keyIn any state, short press this button to display the clock, and it will automatically exit after 5 seconds. Long press this button for 2 seconds to enter the clock adjustment state, the number flashes, and the volume knob adjusts the time, and it will automatically confirm after 5 seconds.5. Automatic lock keyIn the radio state, short press this button to search and store radio stations automatically. After storing the station, short press the up/next button to choose to play the stored radio stations. A total of 18 radio stations can be stored.6. DisplayDisplay the current radio frequency, current playback information and clock.7. TF card socketInsert a TF card and automatically play songs in MP3 format.8. USB socketAfter inserting the U disk, MP3 format songs will be played automatically.9. Remote control indicatorWhen the remote control is short-pressed or long-pressed, the indicator light flashes.10. Alarm switch/off buttonAfter power on, short press this key once to turn on the alarm (beep once). Short press this key again to turn off the alarm (beep, beep twice), in the radio or playback state, long press this key It is shutdown.11. Start/pause/mode switch key(1) After powering on, short press this key to turn on.(2) In the radio mode, short press this key to mute, and then short press this key to unmute.(3) In the MP3 state, short press this key to pause playback, and short press this key again to release pause playback.(4) In any state, press and hold this key for a long time to switch to the mode; cycle in turn (radio-USB-TF).12. Previous song/backward search/volume down button(1) In radio mode, short press this key to search for radio stations to the low end semi-automatically, long press this key to reduce the volume.(2) In MP3 mode, short press this button to select music upwards, long press this button to decrease the volume.13. Next song/forward search/volume up button(1) In the radio mode, short press this key to search for radio stations to the high end semi-automatically, long press this key to increase the volume.(2) In MP3 mode, short press this button to select music downwards, long press this button to increase the volume. .wang-edit-text{ font-family:Arial !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Host4 x PM4X8 Screw4 x HM8X35 Screw4 x Decorative Screw Cover4 x Washer1 x Remote Control1 x ManualNotePlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.