Safety lights: The flash is relatively bright and it is easy to flash.see at night or in the dark.The LED lights are made of silicone and ABS, which can be used as a warning of outdoor activities at night.The silicone strap is stretched.This bag hasLightweight back is very suitable: running at night, cycling, hiking, night fishing, climbing, adventure and other night activities. Flash: There are two modes: Changliang and Flash.It can be hung anywhere.on the top of the tent, it is easy to remove.identify it, it will not trip, or it may be snagged.on a shopping bagback or clothes.You can safely recognizewhen walking at night, making camping more interesting Each bag hasback: there are three lamp beads on the back;LEDhigh fight for each bag lampback.The warning lights can work for about 70 hours.With 2 extra CR2032 batteries, it can be replaced when the power supply is used. [Simple and easy to useUse] Full One-Click Flash Control, just press gently, even children can easily master the operation. Wide application: Special soft strip design makes it easier to connect to running clothes, sportswear, etc.from strollers, to bags, to backpacks;back, dog collars, etc.Very suitable forSuitable for runners, joggers, children, backpackers, climbers, bikers, dogs, etc.