A must-have for hiking and camping survival gear The hand cranked charger will work with any electronic that has a type 1 USB adapter cord (not included) A perfect gift for your absent minded friend or relative who is always forgetting to charge their cell phone Never worry about your cell phone or tablet running out of power on the road or in between classes again Great for areas prone to power outages Never worry about your cell phone or tablet running out of power on the road or in between classes again. Be prepared for the next big storm. This handheld Dynamo charger leaves dead batteries in the past. The hand cranked charger will work with any electronic that has a type 1 USB adapter cord (not included). A perfect gift for your absent minded friend or relative who is always forgetting to charge their cell phone， or for the outdoor enthusiast's emergency kit.