Ultrasone Wireless Performance 820B Headphone Bundle with SIRIUS Bluetooth Adapter

The black Performance Series 820 Headphones from Ultrasone combine high-quality workmanship with the patented S-Logic Plus technology to provide professionals and audiophiles with the accurate and comfortable listening they demand in the studio, at home and on the road. Incorporating components developed for Ultrasone's flagship Edition series, the acoustically redesigned earcups and their tonal fine-tuning promise a neutral sound with lifelike rendition of voices and instruments.

The all-around sound of the Performance Series 820 originates from the S-Logic Plus Natural Surround System, which uses a decentralized driver to send music around your ear, not just into it. The sound is projected onto the surface of the outer ear rather than the inner ear directly. This technology is often compared to a shower head that spreads water gently and evenly, instead of a hose that concentrates the flow and builds pressure. As a result, the listener experiences a natural three-dimensional sound that brings about a reduction of sound pressure levels by up to 40% (3 to 4 dB). This may reduce the risk of hearing damage and contributes to fatigue-free listening.

Built with comfort in mind, the Performance Series 820 features spacious inner cups specifically engineered to accommodate small and large ears, and a headband that conforms to individual head shape. These allow for a comfortable listening experience even when used for long periods of time.

The Ultrasone SIRIUS is a Bluetooth adapter designed for the Performance Series headphones including the 820, 840, 860, and 880. The adapter is curve-shaped to cling precisely to the shape of the headphone and attaches to the cable input on the earcup. With a weight of only 12 grams, the adapter is inconspicuous and comfortable to wear.

The Bluetooth technology incorporates the aptX codec for high-quality, lossless audio streaming. Specially-adapted headphone amplifiers provide the drivers with a strong, clear signal, ensuring an exciting musical experience. The adapter offers three buttons for easy operation including volume up, volume down, and a play/pause button. An integrated microphone enables the use of Performance headphones as a headset for making calls with a smartphone or tablet, or for wireless communication when gaming. Thanks to the high-performance battery, the SIRIUS can be operated continuously for up to 12 hours and includes a USB charging cable.