Main base and BT line chord only. It requires a BT Type 066270 for it to work.
BT 6500 6510 Cordless Phone Handset Only No Charger No Batteries
BT6500 BT6510 BT 6500 6510 Cordless Phone Additional Expansion Handset
BT 6500 BT 6510 PHONE REPLACEMENT POWER SUPPLY FOR MAIN & ADDITIONAL POD
