Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Features:- Two main channel output.- Treble bass volume independent regulator with remote control， more convenient.- Support FM radio play (FM: 87.5 - 108MHz).- Remote control makes your operation more convenient in a long distance.- Professional level input operational amplifier IC for circuit design， sound， transparent， bright.- Sound mode digital display.- Four electronic keypad control help you operate the amplifier easily.- Can play U disk SD / MMC card for music and FM stereo radio， support MP3 music format.- Selected high-power four-channel professional power amplifier integrated circuits， minimal distortion strong power.- Filtering and large capacity power circuit.- DSP sound field pattern of the four.Controls and Buttons:- 4-Electronic keypad control- Volume on / off- USB / FM / AUX Mode button- V plus / NEXT button- V minus / PREV button- Play / SCN button- Treble- BassSpecifications:- Display: Sound mode digital display- Jack Input: Standard stereo jack- Format: MP3 / FM- Input Voltage: DC 12V- Output Power: RMS 2 x 20W 1KHz- FM Radio Frequency Rang: 87.5 - 108MHz- Frequency Response: 20Hz - 20kHz- Harmonic Distortion: Less than 0.05 percent 4W 1KHz- SNR: 85dB- High Control: 12dB plus / minus 10KHz- Bass Control: 12dB plus / minus 100Hz- The Signal Level: 220MV 47K- Reader， U-disk Format: MP3 FM- Output Power: 100W- Material: Aluminum alloy shell Model : HY - 502 Material : Aluminum alloy Color : Blue Special function : Car power amplifier supports USB， MP3， FM， SD， DVD ArrayPackage weight: 0.358 kg Product size (L x W x H) : 15.3 x 8.5 x 4 cm / 6.01 x 3.34 x 1.57 inches Package size (L x W x H) : 15.5 x 11 x 4.5 cm / 6.09 x 4.32 x 1.77 inches Package contents:1 x 12V USB SD DVD FM Car Motorcycle Stereo Radio MP3 Player Auto Car Mini HiFi Digital Power Amplifier with Remote Control