Sennheiser has recently launched HD 4.50BTNC and HD 4.40BT – two new wireless headphones for the growing wireless headphones market. The HD 4.50BTNC additionally features Sennheiser's NoiseGard active noise cancellation for a listening experience free from any distractions.

Both HD 4.50BTNC and HD 4.40BT employ the advanced wireless technology and audio codec of Bluetooth 4.0 and apt X to deliver true wireless Hi-Fi sound. They feature NFC for simple pairing with compatible devices and intuitive ear-cup mounted controls for changing tracks.

HD 4.50BTNC and HD 4.40BT feature battery life of up to 25 hours. With ANC enabled, the HD 4.50BTNC allows for up to 19 hours of wireless, distraction-free listening. A battery-free listening mode is also possible via a supplied detachable cable. The new wireless headphones have been crafted from durable materials. With their collapsible design, the HD 4.50BTNC and HD 4.40BT fold away compactly. For easy storage, the HD 4.50BTNC comes with a protective case, while the HD 4.40BT can be stored in the supplied soft pouch.

Contact: Sennheiser Electronics India Pvt. Ltd., No. 102-A, First Floor, Time Tower, Sector 28, Mehrauli-Gurgaon Road, Gurgaon, Haryana-122002, India; Tel: 91-18002003632; Website: