This amazing new cockring is not only remote controlled, but it also features Ultra 10 circuitry which gives it 10 different modes of vibration: Slow, medium, fast, escalating, pulsating, fast pulsing and escalating pulse. The vibrating device can be removed from the silicone soft tickler cockring sleeve for cleaning and the replacement of batteries. The controller is very easy to use, with a simple on/off button, and an Ultra10 button to cycle through the various vibration modes. The cockring uses six button cell batteries and the controller uses AG13,LR44Batteries . All batteries are included.