Chinese male voice over artist needed

Dear Chinese Voice artist and Translators, I have 68 medical related video clips. The length of the video clips are between 30 seconds to 1 minutes some has up to 3-4 minutes. You need to place QR-codes in the text leading towards video clips which show the treatments and techniques. These clips already exist in English. you have to put the right Chines audio on the video clips. Just to make sure: a QR-code is a square with points in it. With a QR-reader on a smart phone or on a tablet, the reader of our book can see and hear the video clip. So a combination of a paper book and extra digital information. Please provide your rate per minute and also provide your voice sample. Regards