Ultimate Ears WONDERBOOM 4 Battery Replacement Kit with Video Instructions, Installation Tools, Extended Life Battery and Full One Year Warranty

Replace your UE WONDERBOOM 4 Battery or Keep an Extra Battery on hand as a backup. This is a 2100 mAh Rechargeable Lithium Polymer Battery compatible with your Ultimate Ears Wonderboom 4 Speaker. Simple, Easy and Inexpensive! You get a New Long Lasting Battery, FREE Special Opening & Installation Tools, an Easy-to-Follow Step by Step Instructional Video that guides you through SUCCESSFUL replacement of your battery , AND You also get a full ONE YEAR Money Back Guarantee exclusively when you purchase from us! Active Black: 984-001876 Cobalt Blue: 984-001877 Hyper Grey / Concrete: 984-001879 Raspberry / Pink: 984-001878 Sand Beige: 984-002038