Koss SB45-USB Full Size Communication Headsets deliver the full range Sound of Koss allowing you to hear and speak clearly. The Koss Clear Voice Technology, or CVT, allows the SB45 USB noise-reduction microphone to eliminate excessive background noise. This enables the PC voice applications, such as speech recognition, to be used much more easily...

Bluetooth v.4.0 wireless headphones with cell phone protocol and built in microphones230 mAh rechargeable Li-Ion batteryUnique D‐profile shape for superior sound and fitFold flat design for compact storage..

Wireless Bluetooth In-Ear Buds, Bluetooth version 4.2 Technology6+ Hour Battery Life, Built-in rechargeable lithium-ion batteryIn-Line Microphone & Remote (Play/Pause, Start/Stop, Volume, Answer/End, etc.)Sweat Resistant, Cable Management Clip, Three cushion sizes included (Small, Medium & Large)..

Volume control provides convenient level adjustment from headphones39" cordConnects to any 3.5mm plugIncludes pocket/belt clip for convenient positioningCan be used with any portable music deviceConnects to any 0.125-inch headphone jackMinijack iPhone compatible plug (not gold plated)..

ThePlug, a stereo earbud for the discriminating listener. The Plug earbud is thefirst of its kind. It delivers accurate acoustical reproduction andunbelievable isolation typically found in more expensive, closed-stylestereophones. The Plug features a dynamic element that is positioned justoutside the ear and connected to a tubular port structure th..