Zultys ZIP 33i, Zultyz ZIP 35i and Zultys ZIP 37G phone models have a dedicated RJ9 headset port and are headset-ready. No need for an external amplifier box. Simple plug-and-play Plantronics corded headset installation.

Please select any Plantronics H-series headset such as Plantronics HW540 Encore Pro, Plantronics HW251N Supra Plus, or any other Plantronics headset model starting with the letter "H." You will also need the special direct-connect Quick Disconnect cable Plantronics U10P-S shown below. This will allow you to plug the headset right into the dedicated headset port on your Zultys phone and if you need to get up from your desk -- simply unsnap at the convenient Quick Disconnect. No need to mess up your hair taking the headset on and off throughout the day.