Cheap is cheap and you will not be happy.
We have pair of these
http://peltorcomms.3m.com/world/News...sPageNumber=86 (without bluetooth add on) and have found them very useful and reliable.
Because they are wireless it enables two or more people to operate in and around equipment with ease and a high degree of safety.
We do a lot of work with big pieces of kit and need to have a ground guide.
They are not cheap but they are a lifetime cost and you will find more uses for them as you own them.
The only part that takes some getting familiar with is the sound activated microphone. Typically for the first hour the newbie clips his opening word as it takes a nano second for the mike to open, so the word "Hello" comes out as "Lo".
Peltor is pretty much the cats meow.
The fact that we can use them with any vehicle and no hardware is great.
Just as an aside, your carrier is a registered and insured vehicle for the road in BC?
R