The UE Megaboom 3 has what you want in a portable Bluetooth speaker: good sound quality, long battery life, ruggedness and more.
Ultimate Ears MEGABOOM 3 Review - Rock the party with this speaker
UE Megaboom 3 review: UE Megaboom 3 is more durable, has better bass and a 'magic' button - CNET
UE Megaboom 3 review: Booming excellence
Ultimate Ears Megaboom 3 Review
Dave's Take: The UE MEGABOOM 3 Bluetooth Speaker REVIEW - Forum Testing Reviews - MyGolfSpy Forum
UE Megaboom 3 review: Booming excellence
UE Boom 3 and Megaboom 3: The Best Bluetooth Speaker Is Better
UE Megaboom 3 & Boom 3 Review - Also Compared To JBL XTREME 2 & Sony XB41
Ultimate Ears MEGABOOM 3 Portable Bluetooth Wireless Waterproof Speaker (2-Pack) - Lagoon Blue/Night Black : : Electronics
Ultimate Ears UE Megaboom 3 Review
Ultimate Ears MEGABOOM 3 Portable Bluetooth Water Proof Wireless Sp
Ultimate Ears Megaboom 3 review: A floating Bluetooth speaker with plenty of style