According to many websites 6 months tops. A few years ago a company took apart beats headphones and they had all of $30 of parts inside plus weights to make them feel more upscale.
approximately 6 months
According to multiple negative reviews, these earbuds have a lifespan of approximately 6 months, which you wouldn't want even in your budget headphones.Jan 3, 2020https://www.earbudszone.com
Beats by Dre PowerBeats 3 Review 2020 - Why NOT To Buy Them - EarbudsZone