Eartec UltraLITE 3-Person Headset System with Batteries, Charger & Case (Dual-Eared)Designed to facilitate wireless coordination and communication, the UL3D UltraLITE from Eartec is a 3 person dual eared headset system suitable for use on film sets, theater sets, and more. Each headset weighs only 4 oz, can receive audio at a speed of 1. 152 Mbps, and can last six hours before requiring a recharge, which you can accomplish via the included charging station. Its microphone can swivel 270. When you're done, simply pack it all up in the