COMPATIBLE with BLUETOOTH: The marine speakers has wireless music streaming capabilities and doubles as a sound-processing digital amplifier. Independent Digital Amplifier box can connect to all your favorite devices (such as smartphones, tablets and computers) , the bluetooth coverage can reach 33ft MARINE WATERPROOF RATING: This is a completely waterproof marine speaker that can withstand heavy water splashes and also used for boats, marine watercraft, camper, RV, hot tub, bathroom, living room, a variety of outdoor off-road vehicles SUPERIOR SOUND QUALITY: Our marine speakers have built-in high definition digital effects and impressive enough bass effects. Each speaker can reach a maximum power of 60w. You will be able to stream audio from all of your favorite smart devices and enjoy the clear, pure, high-quality syllables FLUSH MOUNT DESIGN & EASY TO INSTALL: These marine speakers constructed with a low profile design and include cut-out template for easy installation that can be easily installed on boat marine watercraft UTV ATV and other vehicles. Cut-out diameter: 5.31", mounting depth: 2.48" WHAT'S IN THE BOX & QUALITY SERVICE: A pair HMS-6005 speakers, amplifier box x 1Pcs, 3A12V adapter x 1Pcs, DC12V wires x 1Pcs,speakers wires x 2Pcs, screws x 8Pcs, Product Manual x1Pcs. Your satisfaction is the foundation of our forward momentum. Herdio Model : HMS-6005WBTB