Thermarest neoair mini pump after a long day of travel its a relief to flip open the neoair tm mini pump and watch your neoair tm mattress inflate to the perfect level of comfort in around 3 minutes powered by 2 aaa batteries the small ultralight pump weighs only 23 oz 65 g takes up little space in your pack and makes for a big comfort upgrade on any adventure fits any neoair mattress valve batteries not included