I am selling this item because I didn't use it after purchasing it new. Due to shipping costs, I can lower the price to 3000 yen if I open the package and fold it to include it with the item. The following is a product description quoted from the official website: The BLINDER MINI is a powerful and compact bicycle light. Both front and rear lights have four types of light graphics, and it has five light modes. Charging is cordless, using the USB socket on the main unit. The entire light shines with COB (Chip On Board) LED, improving visibility from the surroundings. Using the same strap as other lights in the BLINDER series, it can be easily removed. It also has IP67 waterproof performance, making it a smart light that can be used for daily commutes, school rides, and weekend cycling. Maximum brightness: 50 lumens Size: H: 40mm x W: 33mm x L: 31mm Weight: 17g Charging time: 4 hours 8 light modes 100% waterproof Chip On Board (COB) LED Maximum continuous flashing time: 30 hours