There will be marks on the casing as per photos.
BT ESSENTIAL DIGITAL PHONE WITH HD CALLING - never used
BT ESSENTIAL DIGITAL PHONE (DECT) WITH CHARGING BASE / PSU - X42-F81
BT Advanced Digital Home Phone with BT Essential Digital Home Phone
BT Essential Digital Home Phone X42-F81 HD Digital Voice Smart Hub Telephone
2 X BT Essential Digital Home Phone Digital Voice Telephone
BT Essential Digital Home Phone HD Calling, Black Handset, Wireless Phone BT
