Bluetooth powered on the AVRCP/A2DP audio-streaming profiles with weatherproof handlebar mounted control. The internal amplifier circuits have been “frequency-tuned’ to reduce distortion and improve high speed performance. Flexible mounting options include handlebar clamps with bushings to fit 7/8”, 1” and 1-1/4” diameter handlebars, along with mirror mounting bracket plates. Plug-and-Play wire harnesses included. Speakers. Speaker Cone Construction: Black Poly. Speaker Enclosures: High-Impact High-Temp Polycarbonate. Frequency Response: 50-15kHz. Amplifier Output Power: 120 W Max - 44 W RMS. Magnet Material: Lightweight Neodymium. Channel Separation: >50 db. Bluetooth Media Control: Handlebar-Mounted Weatherproof. Bluetooth Profiles: AVRCP/A2DP Stereo Audio Streaming. Optional AUX Input: 3.5 mm Aux Input Jack. Operating Voltage: 10-16 VDC.