Realistic CB Citizens Band Transceiver TRC-180 2-Watt 3-Channel Walkie Talkie
I am lucky enough to get my hands on a Realistic TRC-86, the walkie talkie they used in the series. Not sure if it works but just to have as display is
ArtStation - TRC-206 Walkie Talkie
Vintage Realistic TRC-206 3-Ch Citizens Transceiver Walkie Talkie Power Cord