The Streamlight KeyMate USB is an IPX4 water-resistant flashlight for your keychain. It has a spring loaded clip so it hangs on your keychain just like a traditional key, but the blade of the KeyMate is the flashlight. It has a multi-function push button switch which shows the charge status of the 110mAh lithium polymer battery that is rechargeable with the included USB cable. The KeyMate has three lighting modes that include low, high and emergency flash. It will run at 35 lumens for 1 hour or 16 lumens for 2 hours. For more info visit Streamlight. You’ll be able to buy one for about $25 when it becomes available on Amazon in the next 1-2 months.