... of copper wire: copper or silver Voltage: DC3V Power supply:battery box General parameters ITEMMK-A-W01010Light colorred, yellow, pink, purple, ... . It can be used both indoor and outdoor. The battery box can work under water, we design the shape and size ... 7 factory produce, low cost and hight quality 8 battery box works under waterPicters upside bottom sideside faceworking Cerrtificates&work shop ...