Features: 1.With a remote control and a built-in battery in the remote control, it is easy to control and use, and more convenient. 2.The design is not only fashionable and trendy, but also perfectly matches the sound, making your motorcycle more eye-catching. 3.Designed with memory card slot (NO memory card included) and USB interface for external audio playing. 4.Compact size of 92x67mm/3.6x2.6in, easy to install and it will not affect your cycling. 5.The package includes the player, a small wrench, remote controls, which includes everything you need. Specification: Item Type: Motorcycle MP3 Player_x000D_ Material: ABS_x000D_ Host Size: Approx. 92 x 67mm/3.6 x 2.6in_x000D_ Remote Control Battery: 150mAh Button battery CR2025 (Built-in)_x000D_ Applicable Models: Universal for motorcycles_x000D_ Wiring Instructions: _x000D_ White wire to positive_x000D_ White and black wire to negative_x000D_ Gray wire to positive_x000D_ Gray and black wire to negative_x000D_ Blue wire to antenna_x000D_ Yellow wire to remote control receiving antenna_x000D_ Red wire to positive of the battery_x000D_ Green wire to negative of the battery_x000D_ Button Description: _x000D_ Start button is the switch_x000D_ MOD for play pause button_x000D_ VOL- for back and volume_x000D_ VOL+ for forward and volume_x000D_ CLK for CLOCK_x000D_ Memory card (NOT Included) and USB socket can be installed on the side_x000D_ _x000D_ #FM Radio_x000D_ Frequency Range: 87.5 - 108MHz_x000D_ Intermediate Frequency: 10.7MHz_x000D_ Signal To Noise Ratio: 40dB_x000D_ Noise Limit Sensitivity: 5%_x000D_ #Playing_x000D_ Signal to Noise Ratio: 40dB_x000D_ Channel Spacing (at 1KHz): 23dB_x000D_ Harmonic Distortion (at 1KHz): 5%_x000D_ Frequency Response: (100Hz: 10KHz6dB)_x000D_ #Power amplifier_x000D_ Output: Speaker output_x000D_ Speaker Impedance: 4: 8_x000D_ Rated Output: 5W2_x000D_ Maximum Output: 7WX2_x000D_ Power Supply: DC12V Note: Please allow for errors due to manual measurement.