Brand: Speaker Type: Polyprone Cone, Butyl Rubber Surround (x2) Model: Audio Speaker Size: 4 Inches Power Source: DC 12V Speaker Maximum Outpu: 800 Watts Frequency Response: 20 KHz Impedance: 4 Ohm Connectivity Technology: Bluetooth, Auxillary 800 WATT MAX POWER: The pair of Pro Audio PowerSport speakers feature 800W high powered output. It has a frequency response of 85Hz-20kHz w/ 4-ohm impedance & equipped with impressive bass response & integrated speaker wiring for quick connection WIRELESSLY STREAM AUDIO VIA BLUETOOTH: Listen to streaming music services such as Spotify & Pandora, control the track, volume up/down & play/pause through your system. The Aux Input allows you to connect to the audio output of external devices WEATHERPROOF & WATER-RESISTANT HOUSING: The speakers feature marine-grade IP-X5 waterproof construction w/ weatherproof & water-resistant housing perfect for extreme water sports. It has a sleek design & du