Description: Lightweight and Comfortable: Adjustable headband and microphone boom arm for optimum fit. Foam ear cushions built for comfortable wearing and let you talk in comfort. Noise-canceling: Noise-reducing microphone provides clear call quality without distractions. Compatibility: Telephone plug makes your headset compatible with most phones. Perfect for working/writing/taking notes while on the phone. Especially for Phone sales, Telephone Counseling Services, Insurance, Hospitals, Banks, Cake Shops, Telecom operators, Enterprises. Can be Compatible with the most regular telephones in call center. Hearing protection technology, we are care about the users' hearing. Microphone noise abatement can reach to the aviation noise reduction level. The Best Call Quality: Around 10,000 times Testing, the microphone boom rotates, 330 degree adjustable boom; Helical headphone cable which will avoid damaging Perfect for Phone sales, Insurance, Hospitals, Telecom operators - [Monaural] Equipped with a recording interface, can be used for training or connected with the computer sound card to record; during the use. Specification: Color:Black Material: ABS Size: approx. 155*135*30mm Cable Length: about 1.35m Package Includes: 1x Hands-free Headset