<p>KSPEAKER KS-S7CH bluetooth waterproof sound system brings you enjoyable music.;</p ><p>The one-piece metal body and a pair of 3-inch full-range speakers can be installed on motorcycles, scooters or ATVs (fit round tube 7/8 Inch, 1 Inch, 1.25 Inch).;</p ><p>The Bluetooth function allows you to connect to a music device to play your favorite music, and you can use the FM radio function to accompany you with messages whenever you want.<br></p >