COLEMAN Outdoor Camping Inflatable Mattress 4D CPX QuickPump w/ Valve Adapters CPX system means you can operate on included battery cartridge Inflates most products with included adapter for Boston valves, pinch valves or Coleman Double Lock valves Coleman is proud to donate 5% of the purchase of this product to Camp Mak-A-Dream. Can be powered by 4 D batteries (not included) Upgradeable to CPX 6 rechargeable energy pack (sold separately)