600 WATTS MAX POWER OUTPUT: This BT control unit is powerful with its 600 watt max. It has an anti-thump turn on & soft turn on/off to save energy. Also comes with 2 to 4 Ohm speaker impedance & universal vehicle mounting on rocker switch position WIRELESS STREAMING MUSIC ABILITY: Experience a simple and hassle free pairing with our BT control unit! With the BT Version of 5.0 and range of up to 30+ ft, this controller will surely exceed expectations. Works with all of todays latest devices WATERPROOF AND WEATHERPROOF: With a marine grade of IP-X6, this BT control unit is waterproof, weatherproof and can withstand a variety of harsh weather/water conditions. Also has a marine grade rugged construction & integrated power wiring harness