Mini Portable Keychain Light COB Light Source Camping Lantern Strong Magnet Hook Lock Folding black.The keychain light is mini and portable to be as emergency light and work light, COB light source, four modes, fast charging. It has strong magnet, hook lock design, folding bracket, bottle opener and bracket hole, multi-functional use. Features : Only 40g weight, small size, slim body, easy to carry. Strong magnet, free hands, more convenient. Hook lock design, make use more convenient. Built-in