Using Bluetooth 5.0 wireless technology, the Sennheiser HD 450BT ANC Headphones produce incredible sound. And it’ll completely immerse you thanks to its active noise-canceling technology. Furthermore, the design incorporates a closed back to ensure you’re completely captivated. With an over-ear design, these Bluetooth headphones last for a full 30 hours before you have to worry about recharging. You’ll make it through quite a bit of that new audiobook with battery life like this. Plus, these wireless headphones use wireless codec..