This is a 2-pack universal foam windscreen cushion for BlueParrott, Jabra, VXi, Plantronics headsets. The foam cushion helps protect the microphone from particles that can clog the microphone leading to poor transmit during conversations which can lead to constantly repeating of communications when engaged with clients. Help protect your headset investing with this simple microphone foam cushion. Prevention is much cheaper then replacing your entire headset. Note: When ordering this item it will include 2 individual cushions inside the box. Sample of headsets you can use this item include: Plantronics .Audio 478 Plantronics Encore PRO (HW301N), (HW291N), (HW710) Plantronics Supra (H51N) Plantronics Supra Plus (HW261N) 64339-31, (HW251N) 64338-31 Jabra GN2000 Mono Noise Canceling - 2020-NC, 2025-NC Jabra GN2100 Series - GN2120-NC (01-0243), GN2125-NC (01-0247) Jabra BIZ 2400 Series - 2420, 2425, 2475 Jabra BIZ 1900 Series - Duo (1989-820-105), Mono (1983-820-105) Jabra PRO 920 and 930 Wireless Jabra PRO 9400 Series Wireless VXi Lux Headsets VXi Passport Headsets VXi BlueParrott Bluetooth Headsets - B150, B250, B250-XT, B250-XTS, B250-XT Plus, B350-XT, B450-XT, VR11, VoxStar, ExpressWay Pioneer Radio Microphone Pioneer CD-VM1 PC Headsets: Cyber Acoustics AC-204, LifeChat LX-3000, Logitech H110