The Jabra Evolve 30 is a professional headset, designed to improve conversations. Excellent speakers are built for both voice and music. Switch easily between conversations and listening to your favorite tracks. Simply wear the headset to eliminate high-frequency noise, such as human voices, - all thanks to the specially designed ear cushions. In-line call controller gives you easy access with large buttons and LED indicators. Pick up or end calls, control volume, or simply mute the line. **Jabra Evolve 30 with 3.5 mm jack** In response to popular demand, Jabra is proud to announce the new upgraded Jabra Evolve 30 now with a new USB call control unit with integrated 3.5 mm jack for connectivity to smart devices. Help your customers speed up their UC adoption with the user friendly Jabra Evolve 30.