05-06-2018, 09:36 PM
Seeing there isn't a specific one for russian you can always use MLS 5.5g with the intent to learn russian faster, it can be applied to learning anything you want.
http://www.subliminal-shop.com/product/m...peed-5-5g/
http://www.subliminal-shop.com/product/m...peed-5-5g/