Mirror Style waterproof JSA Audio speakers are high quality, robust and durable waterproof speakers, designed and built to withstand the harsh conditions associated with use in marine applications.Speakers are capable of delivering full range output, and are universal fit that can be mounted to most model jetskis. The 3 inch Marine Speaker is a waterproof design, UV and salt/fog protection. Waterproof Marine Speakers Motorcycle Marine Boat Audio Stereo System120W 3inch music speakers. AmplifierDigital Power Amplifier 12V Car Amplifier with Built-in Bluetooth No Noise Radio Digital Display - Bluetooth connectivity. Specification: Input power: DC 12V 5A Output power: 20W x 2 RMS Speaker impedance: 4 - 8 ohms Frequency response: 20Hz - 20KHz Total harmonic distortion: 0.4pct and less SNR: 80dB and more Design: Car Compatible with: MP3 Supports: Loudspeaker, Volume Control Functions: Songs Track Connection: Wireless Interface: 3.5mm Audio Audio Source: Electronic Products with 3.5mm Plug Material: Aluminum Alloy Color: Black,Blue,Red Bluetooth version: V4.0 Transmission Distance: W/O obstacles 10m Package weight: about 0.394 kg Product size (L x W x H): about 15.50 x 11.00 x 4.00 cm / 6.1 x 4.33 x 1.57 inches Package size (L x W x H): about 16.00 x 15.00 x 5.00 cm / 6.3 x 5.91 x 1.97 inches