Thank you for viewing our product! 【2.5mm Phone Headset】: NOT compatible with cell phones or computers. This phone headset with microphone ONLY supports AT&T ML17929 Panasonic VTech CM18445 RCA 25424RE1 Uniden Cisco Linksys SPA Grandstream Polycom Clarity XLC3.4 Yealink W52P Zultys Sies. emens Gigaset Cortelco home office landline phones and most cordless Dect phones. With standard 2.5mm headset jack. Please see the list of compatible phones for more details. 【High Sound Quality for Clear Communication】: Panasonic cell phone wideband sound 2.5mm landline phone headset enables excellent sound quality for a natural listening experience. Noise-canceling microphone to reduce background noise, acoustic shock protection circuit to protect hearing. 【Most Comfortable Headset】: Ultra-lightweight office phone headset for AT&T cordless Dect phones. Adjustable headband to fit any head size. High-quality and soft leatherette ear cushions for all-day comfort. Built-in professional microphone mute/volume control. 【Super Durable】: Precise design, high-quality plastic, integrated headband structure, and superior quality microphone make this hands-free call center headset more robust and durable. Compete with Plantronics and Jabra's heavy-duty phone headsets for call center services, customer service, conference calls, telemarketing, telephone counseling services, telesales, insurance, hospitals, banks, telecom operators, enterprises, home, office, cordless DECT phones, etc. 【2-Year Support & 2.5mm Jack Compatibility】: 45-day money-back guarantee and 2-year support. Compatible with specific phone models with a 2.5mm jack as described (but not limited to). If your phone model is on the list, please purchase this office phone headset. Management Number 129-267