Loud, wireless, durable, and smaller than a coffee mug, Rock Block from ION Audio brings you wireless music streaming and BIG powerful sound that you can take anywhere. Equipped with a full-range speaker and passive radiator subwoofer, this compact speaker easily fits in your backpack, purse, and gym bag so you can rock the block wherever you go. It"s perfect for the beach, deck, gym, park, kitchen, and much more. With Rock Block"s integrated Bluetooth functionality, you can stream music wirelessly from your Bluetooth-enabled smartphone, tablet, and computer. Track Skip and Volume controls are located right on the speaker for easy access; plus, you can turn up and turn down the volume directly from your Bluetooth-enabled device. Rock Block also has a built-in 1/8-inch (3.5mm) input for playing music with non-Bluetooth players. Finally, its guitar-style cabinet sports a black soft-touch finish and metal corners for a classic design that looks as good as it sounds.