Poly Mission 815 Headset

["Effectively cancels outside noise to reduce distortion and deliver clear, uninterrupted sound","The 815 headset provides plenty of freedom with wired connectivity for continuous listening","Perfect for Audio/Visual Labs, Assisted Listening Systems, and other setups with a mono jack for non-stereo use","Features USB connector for consistent, secure data transfer and smooth operation","Computer application/usage boosts productivity with added ease of use, ensuring consistent performance and functionality"]