https://www.amazon.com/Mpow-Cancelling-Headphones-Bluetooth-Microphone/dp/B07RXXJ8YD/ https://www.amazon.com/Mpow-Cancelling-Headphones-Bluetooth-... It's not

https://www.amazon.com/Mpow-Cancelling-Headphones-Bluetooth-Microphone/dp/B07RXXJ8YD/ https://www.amazon.com/Mpow-Cancelling-Headphones-Bluetooth-... It's not strictly fair because you asked for 20 hours, and these do 30, so perhaps disqualified. I use a similar model MPOW at home. They sound great! Not like audiophile perfect great, but good enough. I have a kid who likes to play with everything, so $500 headphones are a big no. I'm not arguing that these are dumb, or overpriced, or anything, I don't really care. But there are decent alternatives in this space already.