The Jensen JMS3SPKG Marine Stereo System offers 160 Watts (40W x 4) power with Bluetooth streaming audio (A2DP/AVRCP), USB input, and AM/FM tuner! The system is waterproof rated at IPX6. The circuit board is conformal coated to prevent corrosion, while the rest of the components are constructed with corrosion-resistant materials or finishes. The two included speakers measure in at 6.5" and support a 60 watt maximum handling power.