The Panasonic KX-TGW420B Expandable Telephone Base Station is an easy-to-use wireless phone system that provides up to 10 phones for your home office or small office space. The base unit is compatible with up to 4 lines; up to 9 extensions (wireless desktop units, optional handsets) can be connected to the base station for a complete, customizable phone system. Wireless connections ensure freedom of movement, and DECT 6.0 technology ensures that you will continue to experience call clarity, even at long range. The KX-TGW420B has many convenient features to support your business, to ensure that calls are heard and answered efficiently and that the caller has a pleasant experience. Digital Receptionist answers calls and transfers them to the appropriate extension; 10 programmable ring tones can be set according to your preference; and hold music, do not disturb, and call recording ensure every call is handled professionally.