Afforable Speakers (Meet Ultrasonic 20kHz Requirements)

[adventurousman]

Both the dock speakers that are mentioned here, isn't available in the Netherlands.

http://www.amazon.com/gp/product/B000KE4...ss_product

http://www.amazon.co.uk/Logic3-MIP011K-i...784&sr=1-7

I've found this website but I'm not sure which one has 20khz, which one is good http://www.beslist.nl/products/elektroni...umprice=46