There are too many walkie-talkies in the market and they're meant for different market not only for amateur radio. Amateur radio is not an equipment but is a hobby, a licensed hobby.

May I know what you're going to use the walkie-talkie for? Some of the walkie-talkies fall under different class assignment and probably doesn't require you to get a license for it. Example is the FRS, PMR and CB radios.

There are many China made brands on the market and I believe many of them cheapo ones with names like Motorola or Kenwood are fakes/clones.  If you're in Klang Valley,  go down to Jln Pasar,  or Lowyat/Digital Mall PJ. Asked them for license free frequncies and they could program them for you as channels.  The China made brands like Boefeng,  TYT,  and the likes can be had around RM150  and above a unit,  complete with charger, good enough to be used within short distance. There are other walkie-talkies sold at AEON BIG, ALL-IT and some retail chains, they're probably either PMR or FRS radios like Motorola Talk-About, no programming needed, they're already using license-free frequencies, the range is very limited to around 3KM line of sight, or if within a building, probably could cover up to 3 stories.

As for SIRIM or not SIRIM, if you are getting one that you can't insert the frequencies yourself, you better get the one with the SIRIM approval since those are inspected to have programmed in with the right frequency.

I've seen a lot of really cheap China made ones with nonsense frequency programmed in it.

Citizen band is only at 477 MHz band and 446 MHz. These does not require any license to operate on.

Usually it is hard to find a good China one which is cheap but you could get away with a Baofeng UV-5R that fits your budget. This particular model lets you enter the frequency directly using the keypad in which you have total control of which frequency you are going to be using.

If you are looking for a long term investment, I suggest you find a 2nd hand original Motorola GP328 instead as they are super heavy duty, water resistant and you can have the appropriate frequency programmed into it(usually seller will program it for you).

These costs around 300 to 500 each but they can last for years and years since they are built for it. With a cheap China radio, you are lucky if they last more than 2 years or so( which means more money poured). 

I can point to you to some 2nd hand Motorola units if you want or even have it programmed at a price for you if they do not provide.

btw, brand new for these is around RM 1000 each.

Do note that the citizen band is a UHF band. Never buy VHF or HF or anything else.

I just realized that I have made a mistake. There are actually a citizen band on HF but then, that is usually for rigs/mobile/base stations.

Well,

For the safe range you can refer to this table. Also, it is the 446 AND 477 band. Not 446 all the way to 477.

Source: http://www.skmm.gov.my/skmmgovmy/files/att..._April_2010.pdf

It is going to interfere with the mics only if you get close to their frequencies. I suggest that you use the 477 band because that is what people typically use.