silver grey miniWINDER as smart as it gets. miniWINDER is the world's smallest earphone storage device with automatic wind-up function. It requires no batteries, and earphones are not permanently attached, meaning you can use your own earphones. When the earphones are pulled out it automatically resets the device making it ready to wind-up. Just push the earphone cable across the top slot and then push the button and miniWINDER grabs the earphones and starts winding. The first time you use it miniWINDER must be pre-wound. Works with most popular earphones (2mm diameter and 1100mm length or less). Will not fully wind up earphones with built-in microphones or other devices attached to the cable including some iPOD models. Comes with a lanyard for attaching to your key chain/ mp3 device/ phone or bag. Insist on the original miniWINDER.