Test 5 days and return to the seller.
Recording level unusable. drastically low! to be reserved for trumpeters.
or my copy had a latent defect?!
level auto: unusable
for the standard manual: hight level to 8.
tested with internal microphone, AT33 & audiotechnica seinheiser K6-M64
Do not throw it like me for the variable pitch function is doing well.