The best thing you can do with that amplifier is throw it away.

Why waste your time and money on junk.

BUY yourself a transceiver and forget about walkie talkies...

Walkie talkies has a couple of purposes.

If you are at a hamfest, you can use it to communicate between club members

If you are working a civic event, you can use it to communicate

If you get a flat tire, you can stick it under another tire to keep your vehicle from rolling away.

Walkie talkies are the last radio you should buy, not the first...

People confuse amateur radio with cell phones..

They want something where it is small and doesn't cost much and they can squawk on the one or two local repeaters with no investment of time, money or knowledge.. You don't need to know anything about antenna's, feed lines or sWR, all you have to do is squawk....