Xiaomi Walkie: Talkie

While it supports "universal" analog frequencies, the pairing process for "Group talk" is best done via two phones and the Xiaomi app. Handing this to a grandparent or a young kid without a smartphone requires teaching them how to manually match frequencies and QT/DQT codes.

Crucial Note: Depending on where you live, you may need to unlock certain frequencies via software (often via the Chinese app). Out of the box, it might not legally align with FRS (USA) or PMR446 (Europe) without fiddling. xiaomi walkie talkie

Here are some possible specifications for a Xiaomi walkie-talkie: While it supports "universal" analog frequencies