Feature●? This OvisLink Call Center Headset model OVHS084-ATT Compatible with AT&T phone with 2.5mm headset jack. Compatible with AT&T telephone ML17929, ML17939, 1040, 1070, 1080, 944, 945, 955, 964, 974, 984, 983, 993 and Panasonic KX-DT500 Series: KX-DT521, KX-DT543, KX-DT546●? OvisLink Dual Ear 2.5mm Headset with Microphone for Call Center and Small Business. Professional headset with premium voice quality. Advanced features include Acoustic Shock Protection, Noise Canceling and RF-Shield. 2 earpieces on user’s both ears●? Simple to use, no need additional adapter, just connect the headset’s 2.5mm connector to your telephone’s 2.5mm headset jack (located at the lower right hand side of the phone). Press headset button on the phone’s keypad to use the headset. All phone functions control by the phone keypad can also be used for the headset. Quick Disconnect bottom cord included●? Comfortable to wear All-Days. Over-the-Head Style, Lightweight, Smooth leatherette ear cushion, Tangle-Free headset cord and Rotatable Microphone boom (let you to place the speaker on left or right ear anytime you want).●? Durable, for Call center agents to use all days. Comes with 2-Year Warranty.Description OvisLink binaural corded 2.5mm headset with microphone model OVHS084-ATT is a professional dual ear headset for call center, contact center and service center use all days. Its clear voice quality, comfortable fit headband design, rotatable microphone boom, tangle-free cord features make it comfortable to be wear long hours everyday.