1.[Auto ON/OFF & High Lumen COB Tailight] Auto On/Off makes your riding more effective and more energy efficient. Lights automatically turn on when moving or vibrating. With COB leds and smart sensors, ultra bright brake falsh light, even in daytime make you more visible for other road users. 2.[Smart brake sensing & lPX6 & 35H+Runtime Tailight] When braking, quick flash for 5 secs lights warning back rider to enhance your . IPX6 design keeps you absolutely in the rainday. It can lasting 35 hours, no longer worry about forget to charge. 3.[12 LED 9000 Lumen & Design] 12 LED bicycle headlights provides up to 1200 ft of illumination distance and 260° illumination width, meanwhile its anti-glare design makes road traffic r by preventing interference with the view of oncoming pedestrians or cars. 4.[Max 7H Runtime Headllight] This bike light front features with a high capacity battery for up to 7h runtime, so you don't have to worry about running out of illumination halfway through your night ride. With the display of the bicycle headlight, you can keep track of the remaining power and charge the bike lights in time. 5.[USB Rechargeable & Power Bank Function] The bike lights front and back set are both USB rechargeable, and the bike headlight is with power bank function, which can charge your phone in emergency and be an indispensable assistant for the journey.