The Sennheiser CX 150BT wireless earphones provide the perfect balance of audio quality, comfort and durability. An outstanding wireless listening experience on the move is assured by SBC and AAC codec compatibility and the latest Bluetooth 5.0 technology, for fast, reliable connectivity. Thanks to a sleek design, clear detailed sound with excellent noise isolation, comfortable fit (with four interchangeable ear tips supplied), and a 10-hour battery life, the CX 150BT is the perfect companion for everyday use.