Ultimate Ears introduces a new wireless speaker for adventure seekers. Called the UE Roll, the round speaker is designed to pump out 360-degree sound, with its plasma-coated acoustic skin rendering it waterproof and immune to dirt, dust and stains. Featuring Bluetooth capabilities, the speaker’s lithium-ion battery lasts for nine hours on a single charge, and can be attached to anything with its marine-grade bungee cord. The UE Roll is also compatible with other UE speakers using the UE Roll app to create surround sound. Buy it from Amazon now for $100 USD.