Can you recommend a two-way radio system for bicycling, preferrably wireless?

Question

By wireless, I mean wireless earpiece and mic....

Answer 1

Any model Motorola offers that has hands-free capability.  Don't fall for the 5 mile vs. 12 mile range, as the curvature of the earth won't allow the radios to talk 12 miles apart (unless one or both are on top of mountains).

Answer 2

Preferably? What, you are considering a system with wires? That might prove to be problematic.

Joking aside, what are known as PMR446 radios are available in the UK and have a range of between one and three miles. I think that should be more than adequate. You can identify them by the fact that they will have 8 channels and 38 subchannels.

Answer 3

There are a few that might work for you, but some considerations you might want to make when deciding which radio is right for you would be battery life, rechargeable batteries & charger, range of reception, portability (does it come with a clip or do you need to buy a f***y pack?), and the number of operating channels. Most of the two-way radios you'll find at a department store will probably work fine, but if you want to get your money's worth, I'd look at radios by Midland, Uniden, or Cobra, and steer clear of  Motorola.