Electro-sex PU Ring + Anal PlugChoose a setting on the power units dial to control the intensity and go from a sensuous tingle to a throbbing tap in seconds.Switch between SLOW or FAST to control the frequency of the shock, or adjust the dial to control the strength of the shock.Battery type: AAAX2 (1.5V) Do not include battery.Voltage: DC 3VPulse output power : MAX 100 V/20mAPulse frequency: 2-100Hz, Pulse Mode: 10 files strenth, 5 kinds of rhythm