Smart Bike Tail Light Back Brake Light Waterproof USB Rechargeable Safety Taillight Rear Bicycle Flashlight

This bike tail light with adjustable lighting modes,is safe and perfect for outdoor riding use. Features: SMART BRAKE SENSING: The smart tail light will automatically enter into slow flashing mode during your braking time,and automatically turn off when you stopping for 10 seconds. HIGH BRIGHTNESS , Multi-MODE:Bike tail light offers 7 lighting modes,includes low,medium,high,slow flashing,medium flashing,fast flashing and breathing flashing mode. IPX6 WATER-RESISTANT:Made of plastic material,endurable and water-resistant.NOTE: Please do not soak into water fro long time. USB RECHARGEABLE:Built-in 500mAH battery recharges from your power bank,plug or any device with a USB port. EASY INSTALLATION: Mounting base with 3.5inches adjustable silicone strap to fix the light on the seat post,also you can install on your helmets,handlebar,backpacks etc. Specification: Mounting Position: Seat Post / Saddle Rail (optional) Color: Black / Pink / Multicolor (optional) Material: Plastic and Silicone Waterproof: IP X6 Battery: 1 * 3.7 v 500 mAh lithium ion battrey(included) Brightness: 100 Lumen Lighting Range: 180 ° Silicone Strap Length: 90 mm / 3.5 in Light Size: 44 * 34 mm / 1.7 * 1.3 in Light Weight: Approx. 56 g / 2.0 oz (with mounting bracket) Package Size: 110 * 80 * 35 mm / 4.3 * 3.1 * 1.4 in Package Weight: Approx. 80 g / 2.8 oz Package List: 1* Rear Light 1* USB Cable 1* Instruction 1* Mounting Bracket (with silicone strap)