Split is a standalone audio player that fits in your ears; it works without any cables and without Bluetooth. Split is a hands free player: You change track and volume with gentle “bite clicks”. Each Split earphone contains a small circuit board, a button cell battery, a memory chip, a processor and a few other components necessary to play quality digital audio. By synchronizing the right and left earphone with the use of high precision crystal clocks, the two earphones play in unison without being physically connected and without exchanging a continuous stream of radio waves. The two earphones only exchange a short near-field signal when track or volume are changed. This reduces the amount of radiation your head and body are exposed to by more than 1,000 times as compared to a Bluetooth streaming headset. To detect bite clicks Split is equipped with a 3-axis accelerometer.