No matter where your adventures take you, the Altec Lansing HydraShock waterproof Bluetooth wireless speaker lets you bring along the sound track. This powerful speaker is equipped with four 2" drivers, a 2.5" woofer, and a passive radiator for immersive acoustics. It's ruggedly built to withstand water, snow, and shocks from accidental drops. | Altec Lansing HydraShock Waterproof Bluetooth Wireless Speaker - Black/Royal Blue