The Jabra Evolve 75 HD voice combined with world-class speakers deliver outstanding audio with crystal-clear clarity for your calls and music, whether you need to collaborate or concentrate during your day. You can switch on active noise cancellation to virtually eliminate low-frequency sounds, like the hum of air conditioning. Active noise cancellation uses advanced microphones to monitor and counter ambient noise. The Jabra Evolve 75 blocks out noise and stay focused in the open office with superior ANC and an integrated busylight that acts as a ‘do not disturb' sign to reduce interruptions and enhance productivity. Dual Bluetooth connectivity with two devices at the same time for calls and music. Flexibility to move up to 100ft/30m away from your connected device.