This system ROCKS! New 2nd Generation looks, performs, & rocks even better! No compromise here with the perfectly designed 3" main speakers with additional tweeters for full bodied sound. The weatherproof bullet housing has powerful built-in true 50 watt amplifier & includes a volume & on/off control switch. Convenient swivel adjustment gives you the freedom to position speakers in any direction you choose. With a full plug & play wiring harness, noise purifier & standard 3.5 mm jack, simply connect your iPod, MP3 player, satellite radio, personal CD player, etc, & ride on.