Impulse 7 Power Pack with Micro Bullet is a discreet yet versatile sex toy. The Impulse 7 Power Pack with Micro Bullet is a hypersonic stimulator. The Impulse 7 Power Pack with Micro Bullet has seven independent functions. These functions are for vibration, pulsation plus random sequence. Sex toy has a state of the art LED or light emitting diode display. The impulse 7 Power Pack requires three AA batteries. Batteries are not included.