Have this equipment ordered for my 62-year old father, since these nocturnal oxygen required and the Sauerstoffsätigung to control daytime. Delivery was prompt, and there will come from the UK, is clear to me why the shipping costs are so high. Application is actually simple (manual in English), handy storage box is. But: We must not have too big fingers, otherwise you can not properly use the thing. And for the price it's pretty made "cheap", I'm curious how long do the part.