LED keychain light.not only for illumination, but also for decoration Can be ... strap, can be hung on the bags,key.etc. led keychain light,led keychain,led light Function: not only for illumination, but also for decoration ... for kids, also for adults 1.ITEM: YS014-32.Weight: 0.015kg3.Size: 3.8cm*3.4cm*1.3cm4.Power: LR44 ... bottom of the product.1. Turn the button on, the light on.2. Turn the button off, the ...