ITEM NAME:Bicycle Taillights Mountain Bike Rear Warning Light Multi-Speed Warning Tai I9C6 Bicycle Taillights Mountain Bike Rear Warning Light Multi-Speed Warning Tai I9C6 ULTRA-BRIGHT TO KEEP YOU SAFE. 360 degree wide angle visual design provides more visibility than any lights on the market. Whether you're running, walking your dog, cycling, skateboarding, or hiking, these safety lights will keep you safe and secure. FAST & LASTS - 2 HOUR CHARGE = 12 HOURS of FUN: Adventure waits for no one, so we engineered the most powerful, performance driven bike lamp. It charges on any USB device in 2 hours or less, SAVES YOU 100's on batteries and STAYS LIT for 4 - 12 hours; so you can bike your heart out day or night.; AMAZING VALUE - FITS EVERY BIKE: Premium bicycle tail light kit combo attaches to virtually any bike frame, fork, seat post, handlebars ,helmet dog collars, harnesses, or anywhere on your clothing. LED Color: Red Output: 70 Lumens Power by: Rechargeable lithium polymer battery, USB cable charging Battery: Build-in 700mAh Li-ion Battery Charging time: 3-4 Hour 4 modes to choose continuous lighting 8 hours 1 second Slow cycling flash 14 hours 0.5 second Slow cycling flash 13 hours Quick cycling flash about 12 hours Water Resistant: IP67 Long press to turn ON/OFF power. Short press to be light switch mode . Installation: 1.Mounting onto the seat post by silicon bandage. 2. will be installed in the position of silicon bandage. Function Declaration: 1.Long press the power switch for 3 seconds to turn on the power ,red light changes from weak to be bright , at the same time ,fast flashing with 0.5 seconds gap means power on mode . 2..When your bike slopes to be 45 degree or falling down ,SOS flashing mode will be automatically on , and it will be off after your bike goes back theposition . 3.During charging , the red LED indicator will be on , it will be off after full charged . 4.When brakiing ,it will be automatically