This product is not rechageable , it doesn't contain batteries inside . It support usb cable and AA batteries, you could plug in the usb cable to use the inhaler directly or you could insert AA batteries to use the inhaler. For transportation reason , batteries is not allowed to be shipped by air , you need to prepare it yourself . We suggest you to use power bank with usb cable , so it's convenient . Or you could use good AA rechageable batteries yourself .
How to use?