Tiny yet powerful, the Therm-a-Rest NeoAir Micro Electric Air Pump inflates sleeping pads and camping mattresses quickly before being tucked back away in a pack. The electric air pump uses two AAA batteries to inflate a Therm-a-Rest sleeping pad with a WingLock or TwinLock valve in 3 minutes. Compatible with the Therm-a-Rest BaseCamp, LuxuryMap, MondoKing, NeoAir Camper, NeoAir Venture, NeoAir XLite, NeoAir XTherm, NeoAir XTherm MAX, ProLite, ProLite Plus, ProLite Apex, Trail Pro, and Trail Scout sleeping pad models equipped with a WingLock or TwinLock valve. The handy portable pump can also deflate any pad equipped with a WingLock valve before packing up to hit the trail. The NeoAir Micro Pump measures 2.3 x 1.8 x 2 inches and weighs 2.3 ounces with batteries. Batteries not included. Most standard batteries last long enough to inflate a mattress about 25 times. Manufacturer's limited lifetime warranty. Made in the USA.