Wide Compatibility: Mairdi telephone headset includes RJ9 jack and 3.5mm jack, making one office headset connect easily to multiple devices. With a quick disconnect plug, you can switch between landline desk phones, cell phones, PC laptops and more. Compatible with Cisco IP Phone 7931G, 7940, 7941, 7942, 7945, 7960, 7961, 7962, 7965, 7970, 7971, 7975, 6921, 6941, 6945, 6961, 7821, 7841, 7861, 8811, 8841, 8961 and more. Outstanding Sound Quality: Phone headset with HD audio delivers lifelike and clear voice communication. You can enjoy music and conversations with rich clarity, from high tones to low tones, all sounding natural and full. The corded business headset with noise-cancelling microphone reduces background noise, ideal for call centers and noisy office environments. All-day Comfort: Mairdi call center headset is designed with large soft leatherette ear cushions for extra comfort during long hours of wear. The adjustable headband fits different head sizes, and the 330° rotatable microphone boom ensures a customized and perfect fit for every user. Built to Last: Durable RJ9 headset with stainless steel headband, high-quality plastic housing, and reinforced Kevlar cord ensures long-lasting performance. Designed to withstand daily office use, chair wheels, sharp objects, and demanding work environments Ergonomic Design: The deskphone headset with microphone features a quick disconnect plug (compatible with Jabra headset) so you can move freely while on a call. Hearing protection technology removes sudden loud sounds before reaching your ears, keeping audio levels safe and protecting against unexpected volume spikes. ASIN B01MF92NZG Color Black Brand Name MAIRDI Model Name Telephone Headset Style Name Binaural Unit Count 1 Count Item Weight 7.2 ounces Control Type Volume Control Manufacturer Xiamen Mairdi Electronic Technology Co. Ltd Model Number M609DQD002C007 BuiltIn Media 3.5mm connecotor x1, Headset top with QD plug x1, RJ adapter x2, RJ9 connector x1, User Manual Noise Control Sound Isolation Cable Features Retractable Control Method Touch Earpiece Shape Over Ear Headphone Jack RJ9 and 3.5mm jack Is Autographed No Item Type Name telephone accessories Frequency Range 85 Hz - 255 Hz Number of Items 1 Audio Driver Type Dynamic Driver Compatible Devices landline deskphone, PC laptop, cell phone Enclosure Material Leather, Plastic, Stainless Steel Additional Features One headset for multiple devices, noise canceling microphone, quick disconnect plug, wideband auduio, with RJ9 and 3.5mm jack Age Range Description Adult Water Resistance Level Not Water Resistant Connectivity Technology Wired Headphones Ear Placement On Ear Headphone Folding Features On Ear