Converts any TENS lead wire with standard 2 mm push pin plug into a 3.5 mm jack, allowing the use of all 3.5 mm plug accessories with the Ito ES-160, E-600 HAN and AWQ-105 PRO. The polarity of the TENS lead jacks are color coded (black and red) for easy identification. Measures 6.5" in length. NOTE: Designed for specific use with an Ito ES-160, E Han 600 or AWQ-105 PRO device