I've read that 433MHz RF needs to be wrapped like this to optimize signal reception. I haven't noticed any signal gain when using them on the transmitter or receiver, but I think since this is the correct way to TX/RX it must be the modules.
Women'S Bayite Stainless Steel Bands With Frame And Rhinestone Bling, Compatible With Fitbit Blaze For Stylish Replacement Accessory Straps
45 Review
Smart column Apple HomePod mini, gray space
50 Review
4G LTE modem HUAWEI E3372h-320 White
49 Review
Smart Column Yandex New Station Mini - smart column with Alice (no watch), black onyx
209 Review
Experience Dynamic Audio with Panasonic SC-UX100 CD & USB Wireless Bluetooth 300W Mini Hi-Fi System Shelf Stereo
19 Review
KLIM CD Boombox Portable Audio Player with FM Radio, Rechargeable Battery, Bluetooth, MP3, AUX, Neodymium Speakers, and Upgraded CD Laser Lens (2021 Edition)
11 Review
Stream Your Favorite Tunes With AUNA KR-200 SI Internet Kitchen Radio - Spotify Support, Remote Control, And More!
15 Review
Radio receiver Max MR-322 anthracite
14 Review