Panasonic Integrated Telephone System KX-TS820MXCalling out on 10 numbers with one touch dialing button Light Up Indicator with Ringer Alert Redial Button for repeating calling on the last number Navigator key for easy operation Speaker Phone for hands free talking Flash Button increases more convenient to transfer to the branches 3 steps ringer volume (Off, Low, High) Call Lock and Call Restriction 2 steps electronic volume control 39 cm. long coil cord Product Dimensions (Width x Length x Height)