By far the most advanced simulator in the ElectraStim range, the SensaVox is a mains powered, dual-channel unit that allows you to create your own stimulation patterns. Control the pulses and tingles of the electric current by using the rhythm of the music. Plug the included audio cable into your amplifier, iPod or computer. SensaVox will also respond to the sound of your own voice. Enjoy this product during solo masturbation sessions, or share the experience with a partner. SensaVox can accommodate up to 4 uni-polar or two bi-polar EletraStim electrodes and as it\'s dual-channel you can adjust the settings to suit your individual requirements. As well as the audio controlled settings, there are also 9 pre-programmed patterns to explore and 99 intensity levels.