The Pyle PLMRBT33WT is a compact and powerful off-road speaker system designed for outdoor and PowerSport vehicles such as motorcycles, ATVs, UTVs, and marine watercraft. These speakers feature a 3.5" long excursion woofer and a built-in Bluetooth receiver, allowing you to stream music wirelessly from smartphones, tablets, and other devices. The system also includes Rgb lights for added visual effect and a remote control for convenient operation. With a waterproof rating of Ip-X5, these speakers are built for durability in wet and rugged environments.