Tiny yet powerful the NeoAir(r) 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(r) pad with a WingLock? valve the handy pump can also deflate your mattress before packing it up and hitting the trail.