InnoTalk Voice Tube Binaural Headset + 2.5 mm Phone Quick Disconnect Headset Adapter compatible with Plantronics QD Don't Compare This Professional Headset with General Headsets. All Day Wearing Comfort, Compete with Plantronics and Jabra GN netcom High-Grade Headsets for Call Center, Telemarketing, Customer Representative. Multi Year Warranty, 20 Year Proven Quality in The World. Quick Disconnect headset(Cord length 3ft) + 2.5 mm to QD cord (8", Need 6ft? See ASIN B015JB9SMA) fit to a Phone's 2.5mm Headset Jack, NOT a Computer/Smartphone (3.5mm). Quick Disconnect is an Essential feature for Professional headset. It allows you to walk away without remove the headset. Adjustable and replaceable Transparent voice tube for real sound. Omni-directional microphone with Static shock protection and Swiveling speaker Flexible rubber Mic boom metal spring for optimal position from the mouse.