The Jabra Pro 935 MS headset is a professional wireless headset designed for maximum performance. Now everyone in your office can take advantage of the added productivity and comfort that wireless convenience delivers. Simple, intuitive and high quality, all in one wireless solution. With the 2G4 wireless technology you get up to 100 meters / 300 feet hands-free communication for Microsoft Lync. Talk up to 12 hours with no battery life concerns. Optimized for high density office environments.With the 2G4 wireless technology you get up to 100 meters / 300 feet hands-free communication for Microsoft Lync. Talk up to 12 hours with no battery life concerns. Optimized for high density office environments.