In your world, music is essential, so slip on a pair of JBL 951BT and elevate your day. Blasting powerful 40mm drivers, the JBL 951BT headphones deliver JBL Signature Sound punctuated with enhanced bass, so every track pops. And when the music is the only thing that matters, the Adaptive Noise Cancelling technology allows you to block-out ambient sounds so nothing disturbs your groove.