Jabra Evolve 20SE UC Mono. Product type: Headset, Wearing style: Head-band, Recommended usage: Office/Call center. Connectivity technology: Wired, USB connector: USB Type-A, Bluetooth profiles: A2DP. Ear coupling: Supraaural, Maximum input power: 5 mW, Headphone frequency: 150 - 7000 Hz. Microphone type: Boom, Microphone frequency: 100 - 10000 Hz, Microphone sensitivity: 48 dB. Weight: 142 g

With great sound for calls and music, the Evolve 20 is an entry-level professional headset with easy call management through a control unit that makes, takes and mutes calls. Simple connectivity makes it easy to get started with your PC. Comes with leatherette ear cushions and on-the-ear design. Engineered for easy call management, the Evolve 20 is an entry-level corded headset for professionals who need great sound for calls and music. A control unit allows you to make, take and mute calls, and simple connection makes it easy to get started with your PC. Comes with leatherette ear cushions and on-the-ear design for all-day use.