Top features nuisance call block reduces unwanted calls speakerphone allows you to talk hands free do not disturb mode prevents the handset from ringing during specific periods eco mode provides an energy efficient performancenuisance call block reduces unwanted callsthe kx tg8181eb can be used to block any specified number, as well as any head string of two to eight digits matching your specified numbers or numberless calls. This can help to reduce unwanted calls such as telemarketers, offering you peace from nuisance calls.called id allows you to know at a glance who is calling you. Caller information is displayed on the 1.8 colour screen, including their name if they are one of the 200 contacts you can store in the phone's memory.speakerphone allows you to talk hands freefor added convenience, the kx tg8181eb can be used hands free when you need to talk and take notes at the same time. This feature can also be used to allow everyone around you to join in with the conversation.do not disturb mode prevents the handset from ringing during specific periodswhen you need some peace and quiet, the kx tg8181eb can be programmed to prevent ringing during specific periods. It can also be used as an alarm clock to wake you up at the end of your rest, with a convenient snooze function for when you need a few more minutes in bed.eco mode provides an energy efficient performanceyou can lower the power consumption of the kx tg8181eb by using the eco button. This reduces the signal output by up to 90% and reduces power consumption is reduced by about 3.5%, helping to save you money on your household bills.the handset can be left on standby without charging, with a full charge providing up to 200 hours standby time.please note you must subscribe to a caller display service from your network provider for the nuisance call block feature to work. Charges may apply.