Ultimate Ears POWER UP is a charging dock for MEGABLAST and BLAST and is sold separately. POWER UP comes with a special D-ring (Silver) that replaces the standard D-ring (Black) that comes with your speaker.
IMPORTANT: If your speaker has been exposed to chlorine or salt water, rinse with fresh water and air dry completely before charging. USB port and USB cable connector must be completely clean and dry before charging. The USB charging cable is not waterproof.