Sennheiser at the CES 2018 introduced new CX 6.00BT, the company’s latest Bluetooth wireless headset and HD 820 premium closed-back headphones. The CX 6.00BT features ear-canal earbuds joined by a cable around the neck for a lightweight design, superior fit and comfort. The Sennheiser HD 820 closed-back dynamic stereo headphones have unique glass transducer cover that minimizes resonances and for realistic and natural sound field.