Waterproof:NoBulb:LEDBrand:NatureHikePower Source:BatteryOutdoor Activity:CampBrand: NatureHikeModel: B703Name: 4 use in 1 Glw StickPower: 3 LR44 Button CellsFunction(4 in 1):Glow StickFlashlightWhistleSignal FlasherFeature:- 4 functions in 1- Keep working 8 hours as flashlight and glow stick- Keep working 12 hours as signal FlasherUnit Type:piecePackage Weight:0.100kg (0.22lb.)Package Size:15cm x 7cm x 5cm (5.91in x 2.76in x 1.97in)