Pyle Hydra Marine Amplifier - Upgraded Elite Series 400 Watt 2 Channel Micro Amplifier - Waterproof, GAIN Level Controls, RCA Stereo Input, 3.5mm Jack & Volume Control (PLMRMP1A) PREMIUM 2 CHANNEL AMPLIFIER: Pyles PLMRMP1A is engineered as a 2 Channel marine amplifier that allows high quality stereo reproduction from source. This will power up your speaker and universally compatible with a variety of head units. RCA STEREO INPUT: For an easier use of this hydra marine amplifier, it comes with premium RCA inputs. This also includes a 3.5mm-to-RCA adaptor so you can connect your device and a remote for volume control. SHORT PROTECTION: Has a built-in power protection circuitry and soft turn on/off. These are to protect the amp and your vehicle's electrical system from short circuit conditions. POWERFUL 800 WATT: This amplifier is powerful with its 400 WATT maximum power supply. Comes with adjustable input GAIN level controls of 2 to 4 Ohm speak. Its also waterproof marine grade. Marine amplifier delivers 2 x 100 Watts RMS at 4 Ohms, 2 x 200 Watts Max at 4 Ohms, 2 x 300 Watts RMS at 2 Ohms Power protection circuitry with anti-thump turn-on and soft turn-off to protect your speakers Accepts RCA line inputs and includes a 3.5mm-to-RCA adaptor so you can plug in your MP3 player or iPod easily Also accepts standard high- and low-level inputs from marine head units Includes wired remote control for adjusting volume gain. Kindly refer the User Manual before use.