X-Rocker Special Edition II Gaming Chair, 2.1 speaker system ?

X-Rocker Special Edition II Gaming Chair, only used once or twice so in excellent condition with all cables etc. Cost 100 new. From the website:- Sit back and relax in the X Rocker II Gaming Chair Special Edition with the ultimate multimedia experience. This ergonomic gaming chair, boasting an exceptional 2.1 sound system, gives you a crisp surround sound experience whilst boasting flip arms for maximising your comfort that can be quickly flipped out of the way for more intense gaming. X Rocker game and multimedia chair with 2.1 sound system - amp, stereo speakers and powered subwoofer. Bring the game to life with close up vibratory audio in comfortable active rocker, perfect for games, home theatre and music. Compatible with all major games platforms including handhelds, DVD, satellite box, TV, CD, MP3/iPod. Can be linked (up to eight) for multi-player and shared entertainment experience. Flip arms can be flipped out of the way for active games. Folds conveniently for storage and transport. Connectors for common sound sources included. Compatible with PS3 and Xbox 360 consoles in standard definition mode only (A/V connections, not HDMI).