We are Shenzhen Xingzhijie Electronic Co., Ltd based in Shenzhen , China. We are member of Tradekey.com since December, 2009. Our business is related to Gifts & Crafts industry and we specifically deal in LED FLASH BADGES / LED FLASH PIN. Please find our product details below: LED Flash Badges/ LED Flash Pin 1.Screwing the pin tightly make the batteries connect with the PCB, the badges will start to working(flashing with colorful LED light)until it unscrewed. The insulation film will separated the battery from the PCB to off the flashing power 2.Very popular as the promotion gifts and special condtions . Weclome customized design .Any shape , Any color of the light(LED), Any printing. LED Flash Badges/ LED Flash Pin 1.Screwing the pin tightly make the batteries connect with the PCB, the badges will start to working(flashing with colorful LED light)until it unscrewed. The insulation film will separated the battery from the PCB to off the flashing power 2.Very popular as the promotion gifts and special condtions . Weclome customized design .Any shape , Any color of the light(LED), Any printing. Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.