500 Mah lithium polymer battery, lighting about 1.5~4 hours, scientific design, reasonable structure, high efficiency and stability. Buckle design, can be hung on the backpack, belt buckle, easy to carry and store, outdoor camping use. Features - - Material: Aluminum alloy, PC - Size: 4.50X2.00X6.00cm/1.77X0.79X2.36in - Lithium polymer battery: 500 mah - Lighting time: 1.5~4 hours - Charging interface: Type- : 30 -COB Type: strong light -medium light -flash -long press - Wild range of application. Professional flashlight is excellent for adventure, camping, hiking and so on. - Our keychain flashlight has 4 lighting modes, which can meet your different application scenarios using. - This mini flashlight keychain is compact in size and lightweight, you can carry it easily and conveniently. - This flashlight is powered by a rechargeable battery, USB rechargeable design, simple and convenient. - You could send this keychain flashlight to your friends and families as a present, and they will be very happy. Package list: 1 x keychain flashlight 1 x USB cable 1 x Manual