Effortless and functional, the BT Big Button 4000 Cordless twin telephone has large, clear buttons to help key in numbers correctly. It’s hearing aid compatible, has clear caller ID on a large backlit display. With the hands free option you can communicate freely, the handy ‘find me’ function helps locate a missing handset and you also have the option to block nuisance calls. (You must subscribe to a Caller Display service from your network provider to block nuisance calls. Charges may apply. ). Avoid nuisance and unwanted calls with type 2 call blocking - blocks a specific list of numbers and common nuisance call types e. G. International or witheld. 1.8" backlit display screen. Telephone information:100 name and number memories. 15 ringtones. Last number redial. Caller ID. Call log. Handsfree facility. Speaker and ringer volume control. Large buttons. Hearing aid compatible. Up to 13 hours talktime/ 160 hours standby. Up to 50m indoor range/300m outdoor range. Out of range indicator. Low battery indicator. 2 - Blocks a specific list of numbers and common nuisance call types e. G. International or withheld numbers. Manufacturer’s 1 year guarantee. EAN: 5016351615805.