" Power: 2AA batteries(not included) Operating instructions1. load 2 AAA batteries into controller2. connect the four pads to controller3. stick the four pads to skin， when you use only 2 pads， the 2 pads must be from different channels.4. press ""on"" to turn on the machine.5. press ""on"" again to start electro shock.6. press ""on"" more times to intensify the electro shock power / press ""off"" to weaken the electro shock power.7. press ""S/P"" to enter Speed Control， then press ""on"" to speed up / press ""off"" to slow down.8. press ""S/P"" again to back to Power Control9. press ""MODE"" to change electro shock mode10. Press ""off"" to turn off the machinePackaging: 1pc (In order to protect our consumers' privacy， no details about product on package.）Perfect for first timers and those new to e-stimulation. The easy-to-read LCD screen on the digital power control unit clearly displays the function and intensity level， and with 3 pre-programmed pulsation patterns to choose from， this attractive control unit sends electrical impulses to whichever body part you place the pad on. Choose from a sensuous tingle to a throbbing tap， all with the push of a button. With over 100 stimulation combinations to choose from， the possibilities are endless!The pads are self-adhesive， attach to the lead wire using snaps， and clean up easily after the fun with Pipedream Toy Cleaner and warm water. Great for muscle stimulation， neural stimulation， and an all-over relaxing electro massage!The Expertly designed control unit sends electrical impulses to whichever body part you place the pad on. Great for muscle stimulation， neural stimulation， and an all-over relaxing electro massager. Enhance your sexual life with your lover. "