Specifications Waterproof IP65Cutout 102mm 132mmMounting Depth 70mm 87mmDimension Approx 13 2 x 8 8cm 5 2 x 3 46 inchesMaterial ABS Acrylonitrile Butadiene Styrene DB 87dBImpedance 4 OhmFrequency Response 70 20000Hz RespRated Power 15WPower Max 25WMagnet Protection Plastic Water GuardPublic address systemsEquipped with water resistant rubber to avoid splashWaterproof rust heat resistant low temperature flame retardant insulationApplication Boat yacht motocycle SPA swimming pool ATV UTV garden landscape grass pool ectNote This radio speakers without transformer for more than one group parallel to work need to combine with the transformer to use not including Package Included 2 x Speaker