My headphones came on time and were super easy to pair with my devices. There was a little rattle coming from the right earpiece and it was from a part that came loose in shipping. I sent the merchant a message about that and that the sound is becoming dull in that right earpiece with time and they sent me a promo code to cover the cost of a new set of headphones to replace the defective ones. Wonderful customer service. For the price, these headphones have good sound quality and the battery lasts over 8 hours. I recommend them. Great for travel and working out if you don't want to beat up your expensive pair or risk them getting lost or stolen, too.