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

If you have a radio， MP3 or other stereo system attached to your car or motorbike， get great sound on the move with this hi-fi amplifier which is also a great option for connection to your home theatre or entertainment system.Features:1. 100% Brand New and High Quality2. Easy and Convenient to use3. Low distortion， Stereo Amplifier4. Great for use on your vehicle or your home5. Smart， lightweight aluminium casing6. Allows for full control of your volume， treble and bass output7. LED light for Volume ControlSpecifications:1. R.M.S power:20w+20w 2. R.M.S Power: 1KHz3. DC Input Power: 12V 5A Max4. Input Sensitivity: 220mv5. Input Impedance: 47K6. Speaker Impedance: 4ohm to 16ohm7. Frequency Reponse: 20Hz to 20KHz8. High Control:12dB±10KHz9. Bass Control:12dB±100Hz10. RCA Input for MP311. Dimensions:121 x71x41mm(L x W x H)12. Color: Blue，Red，YellowNote: Please leave a message to us what color you need， or we will send you randomly!Package include1 x Stereo Amplifier1 x User Manual