MGR250B RemoteThis four-channel remote is the perfect option to control most BOSS Audio Systems. Features:4-channelCutout diameter: 3” 76 MMZero current draws memoryIlluminated soft-touch buttonsConformal-coated PCB60 watts x 4 channelIPX6-rated weather-resistant/ dustproofInputs & Outputs:USB portUSB charging 2A*Aux-InCompatible with audio output from iPhones, smartphones, and MP3 playersPre-amp outputs 1 pairPlayback:MP3/WMABluetooth audio streaming stream and control your favorite music appsDimensions:Unit L” x W” x H” : 3.5 x 3.78 x 3.78 in.Unit Weight lbs.: 0.66Shipping Weight: 1.066