Product Information BT Elements 1k Twin Handset Enjoy the freedom of your office, warehouse or any large outdoor environment with the outstanding range of u to 1000 metres. The new rugged design combined with reassuring weatherproof technology means you can make calls indoor or out, confident in its durability. The phone comes complete with a stand-alone base unit that can be plugged into any telephone socket or power supply, freeing up the charger pod to be plugged in anywhere you want. Block nuisance calls- The BT Element 1K blocks numbers in two separate ways to help you avoid nuisance calls; Block by Number The BT Element 1K can block 10 individual numbers, meaning that you really can avoid speaking to people you don\'t want to. Block by Call Type Choose the type of calls you want to block. For example, international, withheld, no caller ID or payphone numbers can all be blocked. Do Not Disturb For those times when you just want some peace and quiet, switch on Do Not Disturb so that your phone won\'t ring or light up. If you want key friends and family to still get through, they can do, by tagging them as VIP\'s in your address book. Main Features Block up to 80% of Nuisance Calls IP67 rating Up to 1km range 200 Name & Number directory Auto copy contacts between handsets Location free base Record up to 30 minutes of messages Easy guided set up Outgoing call controls (PIN protect calls to premium / mobile numbers) Backlit keypad for easy dialling even in poor light Do Not Disturb Mode Up to 10 hours of talking and 250 hours on standby See who\'s left you messages Easy access to BT calling features (3 way calling, call divert)