ITO 3-CHANNEL PALM-SIZED ELECTRO ACUPUNCTURE ES-130 Made in Japan. High Performance and Versatility. Frequency selector offers a complete frequency range 1? Unique wave pulse minimizes excessive charge build up in the tissue and damaging. Safe, Reliable, and Easy to Use. Each of the 3 channels are independently controlled? Special dial controls allow easy use yet safe operation? Built in battery life check with indicator light.