colorful AA battery
50pcs colorful led
use 2pcs AA battery(package do not include)
1：Instruction manual include：easy welding，good for Welding learning!
2 : you can put your favorit photo inside,Can be used as a creative gift to family, friends, lovers.
3 :battery power supply,you can put in anywhere without wire.
4:50pcs 7 colorful leds. variety of flash modes，very beautiful.