可以买个，紧急时候可以打开，

https://www.youtube.com/watch?v=b9cIr_B478w&ab_channel=HamRadio2.0

这个是CB Radio - 2-Way 和Handheld Emergency Radio

https://www.amazon.com/Cobra-HHRT50-Handheld-Rooftop-Channels/dp/B0794H67JP/ref=sr_1_27?keywords=emergency+radio&qid=1693444744&sprefix=emergicy+radio%2Caps%2C135&sr=8-27

紧急时候可以找到周围发生上面，也可以和外面联系

这个需要执照，不过紧急时候可以打开

Amazon.com: 2nd Gen TIDRADIO TD-H8 Ham Radio 10Watt 2500mAh Battery Capacity Solid Performance Handheld Two-Way Radio Wireless Programming Module with Repeater List : Electronics

Amazon.com: BAOFENG BF-F8HP (UV-5R 3rd Gen) 8-Watt Dual Band Two-Way Radio (136-174MHz VHF & 400-520MHz UHF) Includes Full Kit with Large Battery : Electronics