The OfficeRunner is the newest wireless office headset offered by Sennheiser, offering an upgrade in sound quality, range and comfort over all previous models. WIRELESS MULTITASKING With the OfficeRunner, talk comfortably up to 400 feet away from your desk phone. That"s more than the length of a football field! ENGINEERED FOR PREMIUM SOUND QUALITY AND PERFORMANCE Be confident in knowing your voice is coming through clearly thanks to the built-in noise-canceling microphone. SLEEK, LIGHTWEIGHT, & MODERN DESIGN At 0.78 ounces, the OfficeRunner weighs less than 4 quarters. The OfficeRunner improves your posture while reducing neck and back pain in comparison to handheld devices. Choose between two versatile wearing styles: over-the-head or on-the-ear. COMPATIBILITY The OfficeRunner is guaranteed compatible with 98% of corded office phones. Certified for use with softphones from Cisco, Avaya, Microsoft, etc. It"s compatible with VoIP services like Skype, Google Voice, and GoToMeeting among others. Works right out of the box, no software installation required! Simply charge and go.BATTERY LIFE AND WARRANTY Industry leading 2-year warranty. Sleek Magnetic Fast Charge Dock provides up to 12 hours of continuous talk time for every 60 minutes of charge time.WHAT"S IN THE BOX Microphone, Deskphone Adapter/Charger, AC Charger, RJ9 Connector Cord, Earloops, Headband, USB Cord, Quick Start Guide, Digital Manual CD, Owner"s ManualSTILL NOT CONVINCED? Watch one of our Headset Advisors explain the OfficeRunner http://vimeo.com/70513659