The Pyle Marine Grade Multi Channel Amplifiers feature built in Bluetooth technology for wireless streaming audio. Instantly connect and stream from your favorite devices (works with iPhone, Android, Smartphone, iPad, Tablet, etc.). Additional features include 2 Ohm stereo stability, electronic crossover networks, RCA line low level input connector jacks and integrated power protection circuitry. The amp systems also include a waterproof 3.5mm stereo to RCA adaptor, DC 12 Volt connection cables and Bluetooth flush mountable controller. Enjoy marine grade amplification with the Pyle Marine Grade Multi Channel Amps. Works with All of Your Favorite Devices (iPhone, Android, Smartphone, iPad, Tablet, etc.) Includes Marine Grade Bluetooth Flush Mounted Controller 2 x 500 Watts RMS @ 2 Ohm We are an authorized Pyle Dealer!