Jabra Evolve75 Accessories ・Main unit ・Jabra Link 370 ・Carrying pouch Although there is no instruction manual, you can easily view it online. There are no noticeable scratches or stains, and it is generally clean. Please check all the photos. Alcohol disinfection cleaning has been completed. Operation has also been confirmed, so you can use it immediately. We will pack it carefully and ship it quickly. Thank you very much. ■Product Description■ ❏Excellent sound for calls and music ・World-class speakers and HD voice for extremely clear calls and music. ❏Eliminate office noise and improve productivity ・You can turn on active noise cancellation to virtually eliminate low-frequency noise such as air conditioner noise. Active noise cancellation monitors and addresses environmental noise with a high-performance microphone. ❏Reduce noise and interruptions ・Improve productivity with superior ANC and a built-in busy light that signals "do not disturb". ❏More freedom ・Dual Bluetooth connection that can connect to two devices simultaneously for calls and music. You can move freely within a range of 30 meters from the connected device. ❏Comfortable all day long ・Leather-type ear cushions and on-the-ear design for all-day use. ■Product Specifications■ ●Type: Binaural ●Product size: 176 x 205 x 51mm (headset only) ●Product weight: 177g ●Speaker frequency: 20Hz～20KHz ●Microphone frequency: 150Hz～6.8KHz ●Bluetooth: Ver.4.2 ●Continuous usage time: 15 hours ●Supported OS: iOS/Android/Win 7 or later/Mac OS 10.0 or later