The Panasonic KX-TG9541B expandable, digital cordless telephone comes equipped with DECT 6.0 Plus technology. Aside from offering outstanding range and clarity, the expandable digital cordless answering system features a bluetooth cellular convergence solution which connects with your bluetooth headset for private hands-free conversations and transfers up to 600 names and numbers from a compatible bluetooth mobile device. The silent mode option lets you turn off the handset ringer while you are sleeping. This model also has a range booster to avoid call drop in between conversation. Additional features include voice equalizer that allows users to adjust the tone of incoming calls to enhance clarity for making voice easy to understand. The dual digital answering system records up to 40 minutes of messages.