I purchased Nova hair trimmer last year it doesn’t a quality product where I felt that what money we are spending to buy this product is not at all worth.the battery should be charged more than 2 hours at a time. dispite of charging so many hours it only works for half an hour and suddenly it gets stopped. again we need to charge it again.once what happens is.my brother had trimmed half of his beard and it got stopped and he has some important work to be done. that is a bad experience of my life I have ever experienced.he can neither go to saloon nor trim it at home.so, he cancelled his important work then he waited for another two hours and finally trimmed his beard.i suggest everyone to be cautious before you puchase this product.thankyou.