I don’t know what it is . turn it to 70%+ and i couldnt hear anything. they are baffled when I tell them Sketchers. Bluetooth 5. Avec la boîte de rangement qui recharge très rapidement, l’autonomie couvrira la journée de la majorité d’entre nous. I used the ear buds for a while, connecting them to various devices, and after about 10 days, I provided my review, (a very positive review), and followed the vendors instructions to get my 20 dollar gift card. Esta muy bonitos y cómodos. Says anti-dust but actually collects a lot of dust as lots of things get stuck to it easily. Tried working out in it today and It really have you sweating. The other annoying thing was that the brackets would not go on the rails.