I purchased boAt Rockerz 510 Bluetooth Headphone in October 2019. By Feb 2020, the problems began with a loose contact. After that, I would intermittently get feeble audio only on one side after juggling repeatedly with the cable. Even this began to get worse, so I contacted Customer Care and asked for an exchange. Unfortunately, the pandemic happened and my headphones were stuck for over four months. I got a replacement yesterday(01 July, 2020) and it is worse! There is no audio and despite being told that a new replacement is being sent, what came looks anything but new.
Do yourself a favour and miss this boat.