Blocking annoying calls* with a specific call lock button (*requires a subscription to the call ID service offered by your carrier or telephone company) Easy to read full dot matrix display The speaker makes it easy to make calls hands-free Caller ID: Caller name will be displayed for contact calls recorded in the phonebook; requires a subscription to the call identification service offered by your carrier or telephone company Wireless terminal size (width x height x depth): approx. 164 x 47 x 30 mm; weight with battery: approx. 130 g