ULTRASONE PERFORMANCE 840 - Hand-assembled high quality Over-Ear headphones featuring S-Logic® natural surround, and ULE® technology
The ULTRASONE Performance 840 is a headphone with accurate, detailed sound for music, movies or games. Mainly developed for home use, the convincing bass reproduction and S-Logic Plus makes this over-ear headphone perform well at any circumstance.
ULTRASONE SIRIUS - Bluetooth® adapter with Qualcomm apt-X® technology for Performance series headphones
The ULTRASONE SIRIUS is an accessory for the Performance series. This adapter allows the already-amazing Performance series to be enjoyed wirelessly via Qualcomm aptX Bluetooth.
