Sony WF-1000XM4

The sound and cancellation noise is very good, but the battery got expanded and split the ear buds open, also the right ear bud battery used to discharge much quicker before the battery expansion

The sound quality is great but apparently this product has manufacture issues that one of the earphones’ buttery will run out so fast compared with another. One stays more than three hours but the other can’t stay even for...View More thirty minutes.View Less

The title says nothing about this is an used item, but just International Version, kind of misleading. it is not clean inside the charging box and the headphone, just disappointing.

Worked fine but after 2 years, the case has started flashing red and won't charge. This is despite me taking care of my headphones through the 2 years.

The overall size is pretty large but with that comes quite good battery life. Sound quality is exceptional in all areas except the bass which is just decent. Case charges them back up from 20% to 100% in about 15-20 minutes....View More Case holds about 4-5 full recharges. I usually get about 10-12 hours on constant use with noise cancelling on before a recharge. Noise cancelling is excellent and works on drowning out machine shop noise. Includes a option in the app to raise or lower the filtering so youView Less