Tail light Blusmart Bike Rear Light Wireless Rechargeable Remote Control Waterproof LED Safety Light with 7 Red/ Yellow Lights Mode of Turning Flashing Laser Automatic On/off 85 Lumens USB Charging Wireless Remote Control- Wireless remote controller allow you to operate the tail light easily during riding, and you don't have to bend over to turn on/off the rear light any more. 7 kind of Red/ Yellow Lights Mode- Steady red LED light, Turning left/ right, Flashing fast/ cross, Stop alarm, Laser steady/ flashing to identify the safety area for you. USB Rechargeable with 2000mAh batteries- Equipped rechargeable 18650 battery and USB cable, easily charge with cell phone DC 5V charger and power bank, no worrying safety light battery replacing, save money and environment friendly. Automatically turn on/ off- Power on: if it's daytime, the bike tail light will be turned off by itself, if you pass through the tunnel or in night environment, the bicycle light will automatically light up. Easy to install and use- Durable and resistance to sunshine, rain and shake. Removable buckle make LED bike light easy to install and steady fixation.FLASH SALE: High Bicycle lock would 10% off with promo code "E5XHU2RC" when you buy a Tail Light, Search Blusmart cable lock.