Make sure you have your charger with you wherever you go with the Coros Keychain Watch Charger. The compact design of this watch charger lets you attach it to your keys, backpack or wherever you want to make sure you have it. It conveniently plugs into most universal USB ports. There is a built-in voltage control chip, and it stays extra snug when plugged into your watch, so you can charge it on the go. It should be noted that the charger may not work on certain quick charge adapters due to high voltage. Don’t lose your watch charger again with the Coros Keychain Watch Charger.