Jabra Evolve 65 Ms Mono Mono Headset Made For Voice & Music, Optimized for MS Lync with Bluetooth connectivity Passive Noise Canceling Speakers with Leatherette Cushions, Noise Canceling Microphone Integrated Busy Light & Discrete Boom Arm 30 Meter/100 Feet of Wireless Freedom & Up to 10 Hours Battery Life Connects to PC, Mobile & Tablet via Bluetooth