A simple pair of ear buds that has an mp3 player built-in, called Split. when you look closely, there is no wire between them.
Developed by Greenwing Audio in Miami Beach. Florida, the company is running a Kickstarter campaign to raise money to bring to market.
The ear buds are built with stainless steel casing. While they look simple, the innards carry some exciting technologies such 100-micron circuit board with a NOR Flash memory chip with a capacity from 64MB to 256MB, an ARM Cortex M3 32-bit processor, and a 3-axis accelerometer, a button cell battery, a earbud speaker with a 6-mm Neodymium Dynamic Driver, yes all is packed in one tiny ear bud. Since there is no wire between them, Split uses high-precision crystal clocks AKA near-field radio signal to sync the both when activating, or when the track or volume are changed.
To download music or to recharge the batteries, an USB cable is provide for the purpose. They work on both Windows and Mac PC.
The project pledges $155 and will expire by Oct 31th, 2013. With 26 days to go. It seems it still has way to go!