Mssugar Feu Arrière De Vélo, Q5 Smart Bicycle Brake Feu Arrière Auto Sensing Light Rainproof Led Cycling Taillight Rechargeable Road Bike Tail Light A (noir)

[Super bright bicycle brake tail light] The built-in integrated accelerometer can ensure accurate brake detection.[Saddle Fitting and Tube Fitting Tape-Installation] Keywell Smart Tail Lights provide two different mounting systems-Saddle Fitting Aluminum Alloy System and Tube Fitting Tape.[Save your time] The blinking light will automatically turn on at low brightness, and automatically turn off under high-intensity light in fast flash and breathing mode.[IPX6 Waterproof and Shockproof] The taillights cover any aluminum alloy shell, so dont worry about the lights getting wet by rain.[USB rechargeable long-life battery] Built-in 400 mAh polymer lithium battery and energy-saving design, the rear bicycle light runs up to 50 hours.