The item is useful and necessary for connecting electrode pad with TENS therapy machine or massager. It is only suitable for 3.5mm jack.<br /><br />Features:<br />The electrode wire is specially designed for connecting electrode pad with TENS therapy machine or massager.<br />The end with 4 buttons is for electrode pad? the other is for TENS therapy machine or massager.<br />The length of the electrode wire is 115cm which is adequate for most users.<br />Only suitable for 3.5mm jack of TENS therapy machine or massager.<br /><br />Specifications:<br />Item Type: Button Type<br />Color: White<br />Button Quantity: 4<br />Plug Diameter: 3.5mm / 0.1in<br />Wire Length: 115cm / 45.3in<br />Item Weight: 24g / 0.9oz<br />Package Size: 26 * 18 * 3cm / 10.2 * 7.1 * 1.2in<br />Package Weight: 27g / 1oz<br /><br />Package List:<br />1 * Electrode Wire<br><img src="//img.tomtop.com/product/xy/2000/2000/p/tt/h/1/h14147-1-b7d5_1_.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/h/1/h14147-5-b7d5_1.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/h/1/h14147-1-b7d5_1.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/h/1/h14147-4-b7d5_1.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/h/1/h14147-3-b7d5_1.jpg" /><br>