Tiny yet powerful, the Therm-a-Rest NeoAir Micro Pump will inflate your pad quickly saving you precious time at camp. The 2.3 oz (65 g) pump uses two AAA batteries to inflate your WingLock or TwinLock in minutes. If you have a NeoAir pad with a WingLock valve, the handy pump can also deflate your mattress before packing it up and hitting the trail.FeaturesInflates your pad in as little as three minutes.Used during pad inflation and deflation.Deflate feature for WingLock Valve only.Not compatible with classic valve models previous to 2020Batteries not included