Enjoy rich bass and Powerful sound through two 3W audio drivers and passive subwoofer. * IPX5 water resistant design makes it the perfect companion at the beach, campground or even at the shower. * Bluetooth 4.0 technology makes the connection faster and more stable. Easy to set up for music and calling. * Portable design with durable lanyard, can fit easily onto your bag or bicycle for on the go use. Lithiumion rechargeable battery for 7 hours music at 80% volume and fully recharged in just 3 hours.