BSP&reg; Cycling Bike Bicycle Intelligent Laser Rear Light 8 LED Tail Wireless Brake Lamp - 2 Red Laser - 3 Modes Lamp Safety Super Bright 8 LED Taillight And 2 Laser Safety Warning Line, Long Life,Stable Performance.3 modes:quick blink, slow blink and continue light. Waterproof, safer in water fog when riding in the rain Kindly Note : Do not look directly at laser lights Use. Rechargeable: Built-in Li-ion battery that can be recharged by USB. 1200mAh battery working about 6 hours. The circuit protection,180-degree adjustable bracket,Provides 220 degrees of visibility from up to 1 mile away.Laser design, energy saved, highlight 8 led and 2 laser launcher, wide visibility design3 mode adjustable in mixed strobe, strong strobe and strong brightness Working more than 6 hours, caution laser, avoid exposure directly to eye Stylish cool "jewel" appearance design, lightweight and easy to use. Great for student,baby stroller,jogging, walking, bicycles, car emergency, horse-riding, road emergency&camping,ETC.