Caution: color: according to the color of the first picture, in the package: if the quantity is not stated in the description, the item according to the quantity and model in the title. 4 Modes tens machine 9 intensity 4 electrode pads for pain relief ems muscle stimulation pulse massage tens electroestimulador the product is based on the color or size of the main image of the product page. 4 Modes tens machine 9 intensity 4 electrode pads for pain relief ems muscle stimulation pulse massage tens electroestimulador features: 1.Includes 4 modes: tuina, kneading, acupuncture, tapping, and 9 intensity levels for your customized massage experience. 2.Usb charged with built in battery of 200mah capacity. 3.You are advised to use the massager twice to 3 times a day, the machine will automatically shut down after 20 minutes operating. 4.It allows for two and a half hours operating hours after fully charged, which saves you from frequent charging. Specifications: material: abs color: gray size: 8.5*3.5*1Cm weight: 173g packing list: 1* unit 4 pair* electrode pads 1* remote controller 1* storage bag 1* user manual