The Ultimate Ears Megaboom wireless speaker is lightweight, fits comfortably in the hand and impresses with its good sound. It is covered in a protective skin which, over time, is designed to take on an individual patina. Since the speaker is IPX7 certified and thus waterproof, the skin can simply be wet-cleaned. Control functions are reduced to the bare essentials so that users can enjoy music without distraction. The rechargeable battery supplies power for 20 hours and is completely recharged within two and a half hours.