If you're drawing a blank as to what to get someone for the holidays, chances are a Bluetooth wireless speaker is a good bet. The Ultimate Ears BOOM from Logitech is a 360-degree speaker designed to give the biggest and boldest sound in any space, in any direction. With a tubular shape and an attached D-ring, you can take the UE BOOM with you wherever you go. Thanks to the acoustic skin coating, it's also water resistant — though we don't think that means it's water-proof so you may not want to take it into the shower or pool. The rechargeable battery will give you up to 15 hours, surely long enough for any house party.