Amplified stereo sound and force feed back accessory for video game devices

摘要

An accessory for a hand-held video game device combines an amplified stereo speaker system and a force feed back effect. The accessory includes an audio connector jack adapted for insertion into the device's headphone outlet. The vibration feed back is activated by and proportional to the sound generated from the device, thus allowing a user of the device to control the vibration feed back by adjusting the volume. The accessory allows the user to further control the vibration feed back for any set level of sound generated from the device.