Czech manufacturer Widara has released a new snazzy-looking pitch only theremin that runs on batteries or AC power. It features a compact design with a retractable antenna for easy transport. You can use it with headphones or an amp. Distant Voices is listed for sale for just 83 € on their site.
And naysayers... Widara is one step ahead of you. Here's an excerpt from their website:
Also this is not meant to play melodies as much as it is meant to produce a nice spectrum of horrifying sounds and noises.
Still, it's inexpensive and could be lots of fun for someone who's looking for a touch of touchless music.
Learn more abot the Distant Voices Theremin at http://www.english.theremin-widara.com/