This flash power bank keychain will give you the juice you need to keep your devices up and running. They feature a metal split keyring for an easy attachment to keys or a bag.
 
Casing Material: Plastic with recycled aluminum cover
Battery: Lithium Ion
Battery Capacity: 1000 mAh
Battery Output Capacity: 500 mAh
Battery Output: 1 Amp
Metal split keyring attachment
Rechargeable via included Micro-USB cable
To charge your portable device simply connect a compatible charging cable
Size: 1/2" H x 2-1/8" W x 1-1/2" D