Cute Octopus Flash Strap for Cell Phone

It will flash with colorful light when there is incoming call or message or when you are making a call !!!
Pull out the sticker and start to use it.
Colors:     Black, White, Pink, Blue, Red
Size:         3 cm (diameter) x 3 cm (height)
Battery:    2 LR1220 button cell
Material:   Plastic

The flash works on the disturbance of the reception. In order to get it work, you need to get it as close to the anthena as possible. Also, sometimes it may flash when your reception turn stronger.