Send your orgasm into orbit! Two 2.14" powerful love bullets are included in the Dual Space Explorer. The battery pack controller requires a 9 volt battery which is included for immediate adult play. There are 5 functions to choose from. The motor functions are slow pulsation, medium pulsation, high pulsation, medium vibration, and high vibration. Enjoy them all. The sensations you will experience are out of this world!