You’re backpackers with main vihicle is motorbike?
You can’t talk because of your helmet?
That’s why we’re here to solve your problem. B-Linker is a small tool come from smart idea, that you can talk to each other using 2 headphone / earphone, 1 headphone splitter (cheap and can be bought everywhere) and B-Linker.
Sound recorded by headphones microphone will be redirect to headphone / earphone right away, so you can both hear from you and your fellow.
Easy? Smart? Useful?
Thats B-Linker.