Review on BOSS Audio MC900B Weatherproof Amplifier - 4-Channel, Bluetooth, 500W, Bluetooth Remote, Full Range, Class A/B, 4-8 Ohm Stable, Aux-in, RCA Outputs, USB Charging by Marcus Hardin

So after I installed the amplifier on my boat it worked perfectly for 1 trip on the lake. 1 month later we went on a 4 day sea voyage which was the 2nd voyage for the amps. The first day it worked perfectly, and the second day it wouldn't connect to any device via Bluetooth. So we had 3 days without music. I bought the $9.99 3 year warranty so Revain is replacing it. I hope the next one lasts longer than a month. (Also, there's a way to hardwire your phone. If you're buying this amp, I highly recommend that you buy the necessary RCA cords and take them with you on your trip, just in case you don't get the music while you're travelling runs out..) I give stars for the sound quality because it worked well when it worked and stars for the price because it was cheap. But I think you get what you pay for.