my honest review after using past 1 week oneplus wireless z2 bass edition does not have loud sound ear pain due to little big design as compared to wireless z bass editionloud sound no 2 stardesign 2 starbattery 5 starbuild quality 4 starnote i prefer to use oneplus wireless z bass edition for good quality sound and good bass wireless bass edition z2 is not satisfied and dont buy these earphonesthere is no refund policy for this product