Details:Weight: 20gRed colorSize: Single 2*7.2*2cmMode: Long light-slow cycle flash-fast cycle flash-burst flashWaterproof: IPX-4Usage: Charge for 2 hours, use for about 10 hoursThe package contains:Bicycle light*2Rubber buckle*2USB charging cable*2DAILY VISIBLE TECHNOLOGY - Did you know that 75 percent of bicycle accidents happen during the day?This taillight keeps you visible not only at night but also during the day, protecting you and your loved ones at all times.ULTRA - BRIGHT TO KEEP YOU SAFE - 240 degree wide angle visual design provides more visibility than any other light on the market.Whether you're running, walking your dog, cycling, skateboarding or hiking, these safety lights will keep you safe.IPX4 WATER RESISTANT - Highly airtight construction - strong and waterproof.These taillights are weather resistant and extremely durable.USB RECHARGEABLE - This tail light can be charged via USB cable via computers, chargers or portable power banks.This will save you a lot of money on batteries.EASY TO USE - Hook onto belt, undercarriage, high visibility vest, backpack, harness or anywhere on your clothing.Attach it to your bike, helmet, skateboard, scooter, stroller, wheelchair or anywhere you like.