The Panasonic KX-TGKA20EB Cordless Phone is an additional handset compatible with the KX-TGK220 or 222. It connects to the mains and acts as an extension of the main handset, enabling you to access features like the answering machine and make Intercom calls. With a large capacity battery, this handset offers both comfort and flexibility, providing a maximum talk time of 16 hours. The Do Not Disturb function allows you to block unwanted numbers, while also allowing you to specify important contacts who can still reach you even when the handset is in DND mode.