I seen this product from Google. Nice look extra ordinary sound. Battery backup is excellent. I buy from lulu international mall in Abu Dhabi . Last 8 months I am using this product. ( Before I used philips model no BT 3900B/00 product was good not extra ordinary.) Volume is very high. Bass is evarsom I like this product I need to put more than 5 star. But I can only 5 star