FEATURES: 

• High quality, energy efficiency and durability: Once charged, it can stand for 2-3 hours in standby without any problems for over 30 days, and with normal use, it lasts for 15 to 20 days.
  

• Three adjustable modes: Wireless ringtones, COB backlight function and remote alarm function. 120dB insanely loud alarm.
  

• Fixed position for remote control: You can find your bike within 100m; 4-in-1 smart sound-based alert and light function.
  

• IPX5 waterproof: No worries even in heavy rain or bad weather conditions.
  

• USB charging function: No problem if there is no charging station available.
  

SPECIFICATIONS: 

• Mode: 3 modes
  

• Color: red
  

• Alarm sound: 120 decibels
  

• Remote distance: 1-100m (open area)
  

• Battery: 3.7 V 700 mA lithium battery
  

• Remote control battery: 12V 27A

• Waterproof: IPX5 waterproof
  

• Blade material: Copper

The package contains: 

• A3: 1* taillight, 1* USB cable, 1* mounting bracket, 1* hex tool, 1* user manual

• A6: 1* taillight, 1* remote control, 1* remote control holder, 1* hexagon tool, 1* gasket, 1* mounting bracket, 1* USB cable, 1* ribbon, 1* user manual