Amazon.com: VTECH IS8121-4 Super Long Range up to 2300 Feet DECT 6.0 Bluetooth 4 Handset Cordless Phone for Home with Answering Machine, Call Blocking, Connect to Cell, Intercom and Expandable to 5
Amazon.com: VTech IS8151-5 Super Long Range 5 Handset DECT 6.0 Cordless Phone for Home with Answering Machine, 2300 ft Range, Call Blocking, Bluetooth, Headset Jack, Power Backup, Intercom, Expandable to 12 HS :
Amazon.com: Phone Headset 2.5mm with Microphone Noise Canceling & Volume Controls, Mono Call Center Telephone Headphone for Panasonic Dect 6.0 Phones, Office Telephone Headset for AT&T Vtech Cordless Phone : Electronics