The Cisco Headset 520 Series and 530 Series delivers vibrant sound and powerful noise isolation, making it an ideal choice for telecommunications in loud, open workspaces. Available in both single-ear-cup and dual-ear-cup models, these wired headsets with an adjustable boom microphone provides maximum acoustic sensitivity (best voice reception) and balanced noise reduction. The headset design helps users stay focused in noisy environments with rich sound and exceptional comfort over long periods of time.