The Shock `n’ Rock combines four gaming accessory functions, including force feedback vibration, a built-in amplifier, stereo speakers and a 10-hour rechargeable battery.
Compatible with any old or new Game Boy Color game, the force feedback vibrations are activated by sound – the louder the sound, the greater the vibrations.
Tthe translucent purple device attaches to the Game Boy by utilizing the stereo plug on the bottom. The Shock `n’ Rock also includes an external headphone jack, a UL/CSA approved 110v AC adaptor and a rechargeable battery. The company’s web site is located at http://www.nyko.com.