Control unit for Jabra Engage corded headsets. Enables easy call control with adjust volume, mute, speed dial, answer and end call functionality. Stay-flat design. USB-A connectivity. Control unit for Jabra Engage corded headsets. Enables easy call control with adjust volume, mute, speed dial, answer and end call functionality. Stay-flat design. USB-A connectivity. Certified for Microsoft Skype for Business in combination with Engage 50. Interface: WiredRemote control proper use: AudioBrand compatibility: JabraCompatible products: Engage Product colour: Black Housing material: Acrylonitrile butadiene styrene (ABS), Polyoxymethylene (POM), Thermoplastic elastomer (TPE) Input type: Press buttons Backlight buttons: Yes Built-in display: No Number of devices supported: 1Country of origin: China USB 2.0 ports quantity: 1 USB connector type: USB Type-A Width: 45 mm Depth: 82 mm Height: 17 mm Weight: 130 g Package width: 41 mmPackage depth: 140 mmPackage height: 93 mmPackage weight: 200 g Quick start guide: Yes Operational conditions Operating temperature (T-T): -10 - 40 deg C Operating relative humidity (H-H): 5 - 85%