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
Amazon.com: kircuit AC Power Adapter for Radio Shack Realistic Trc-216 walkie Talkie : Electronics
Stranger Things Cosplay 2x Antenna Coil Loads for Realistic - Etsy
Realistic Walkie-Talkie Auction | YEAH New Mexico
Realistic TRC-214 Walkie Talkie – RadioShack
Working 1980s Realistic TRC-214 Walkie Talkie by Radio Shack - Etsy
Realistic TRC-214 Handheld CB Radio Walkie Talkie for sale online | eBay
Realistic TRC-222 40 Channel CB Transceiver Radio Walkie Talkies Stranger Things | eBay
Vtg Realistic TRC-214 Handheld CB Radio 3 Channel Walkie Talkie Tested Working | eBay
RadioShack - Protect your 2019 phone like it's 1985! Our iconic Realistic TRC-214 CB Walkie-Talkie may not be available anymore, but its spirit lives on. We're celebrating the new season of our
STRANGER THINGS RADIOS VERSUS MODERN SETS - REALISTIC TRC-214 FIELD TESTING 2020 - YouTube
Realistic Brand Walkie Talkies 6 Channel Citizens Band | Etsy | Walkie talkie, Citizen band, Two way radio
Vintage 1980s Walkie-Talkie | 3D Objects ~ Creative Market
3D model Realistic TRC-206 walkie talkie VR / AR / low-poly | CGTrader