TZT theremin

hello. I want to get cheap theremin under 100$. I found tzt theremin, would that be a good choice?

Actually I don't think it's very good because it's not a true theremin. If there is a true Theremin at a similar price, please let me know. I just want to start Theremin.

When you're in the USA check out Burns theremins. under $100 there are a few
pitch only theremins, the ones with volume loop start at just over $150.

I agree.  For a bit over 200 the b3 deluxe is a very  good choice with Grillo DVD included from “Sounds like burns.com”.  Family owed business.  Not perfect but not bad.  You can always use as a second Theremin when you upgrade, which you will eventually.
Theremins are very addictive. All are different.  I can’t imagine you not enjoying playing.  Have fun.  Learn about and tune consistently and the theremin is very intuitive...
I really like all my Theremins
Burns B3 Deluxe 
Etherwaveplus 
Claravox 

There are many other great Theremins.
Have fun

AKA Douk Audio theremin.
No, it's not good. I bought one intending to tear it down but it was bad enough that I decided not to bother. Possibly could be improved with new antennas.

Try Lostvolts LV4. I love mine for busking.  Very playable and a surprisingly good sound.  Great price. Better than the burns and my opinion.

     I thought they were only available in England.  Where in US can you obtain one?  They do sound very interesting. 
Thanks 

I just saw it on Ebay today. Just search for "LV-4 PITCH AND VOLUME THEREMIN". About $178.00 plus $35.00 shipping depending on the exchange rate. They used to sell to the US directly from their website but no more.

Thanks 
Also, do you like your burns pro.  I have always wanted one. 
Very pretty Theremin.
Thanks 

Thanks Also, do you like your burns pro.  I have always wanted one. Very pretty Theremin.Thanks

I sold the Burns pro about 5 years ago.  It was the first incarnation. The case was beautiful walnut with fine woodwork and the nicest looking theremin I ever owned.  The touch mute plate on the top was a feature that I wish more builders used.  However, although it was more playable the sound was really very much like the B3.