very bad customer service no dialog whatsoever ,i am very sad ,i have purchased other products on Aliexpress but this guy beats tm all for being very vaque and not transparent ,i stil have not recieved the product after more than 3 months .
Product used and defective and after a few days of use it broke completely. Despite the evidence, I was completely cheated by losing my money, time and the instrument that was still broken. I am amazed how such dishonest sellers can be supported by Aliexpress. I hope you are more careful and lucky than me!