New bracelet was created to let DJs know what about the crowd thinks.

Innovative technology Lightwave, created by IPad DJ Rana June, was designed to follow the indications of the party, to measure data such as movement, audio levels and body temperature of clubbers.

These data will pass through the DJ that will allow him to see how many people dancing and find out how good the sound quality at the far end of the room.

A-Trak was the first who tested the device on himself earlier this month, showing it on the South by South West (SXSW).