Warm Tips: This computer headphone comes with a 3.5MM Jack, please do not buy it if you require a USB or RJ9 headset. Great Durability: Stainless steel headband provides high strength and quality PU materials, and the reinforced cord is used against office chair wheels and sharp objects in daily use. MKJ cell phone headsets are subjected to drop tests, plug-and-play tests, and high and low-temperature tests to ensure the headset reliability. Binaural Design: Dual speaker design help reduce the background distraction so you can focus on the conversation itself. It fully adapts to 24/7 everyday use in call centers, busy offices, and working from home. Wearing Comfort: The lightweight and ergonomic design make cell phone headset can be worn comfortably all day. It is equipped with a luxurious head pad, soft ear cushions, and adjustable headband for maximum comfort. 3.5mm Connector: MKJ 3.5mm computer headphone is plug & play, you just need to plug the 3.5mm connector into the headset port of any devices, such as laptops, tablets, mobile phones, and computer PC... Easy to Use: Take a 3.5mm telephone headset with in-line control, you can easily adjust the volume up or down, also switch the microphone muted if needed. Noise cancelling Mic: The superior noise cancelling microphone effectively reduce the background noise up to 85%. With such corded 3.5mm headset, you can have a easy conference calls with your customers even in a noisy environment. Crystal Clear Sound: Equipped with wideband audio technology (50HZ-10KHZ), corded 3.5mm headset let you hear every word clearly.