Panasonic Expandable Cordless Phone System with Amber Backlit Display and Call Block 1 Handset KX-TGC350B (Black) - EASY-TO-READ CORDLESS PHONE DISPLAY - See whos calling at a glance on our wide, 1.6 inch Amber Backlit LCD screen on the phones base unit and cordless handset - CALL BLOCK - Eliminate unwanted calls with Call Block capability. Register up to 30 numbers by entering Caller ID info into the phones call block memory - NTELLIGENT ECO MODE - Power-conserving technology manages consumption for optimal phone battery performance - SILENT MODE CORDLESS HANDSETS - Silent mode allows you to select a period of time during which the cordless handset and/or telephone base unit will not ring for outside calls - CALLER ID - This cordless phone system is Caller ID compatible. To use Caller ID features, you must subscribe to a Caller ID service. Contact your phone service provider for details