Features： 1、MAIN PURPOSE: Digital meridian massage machine helps to relax pressure, eliminate muscle tension and fatigue, and massage the whole body. 2、MULTIPLE FUNCTIONS: Low frequency pulse stimulates acupoint pressure, improves blood flow, and alleviates back pain, shoulder pain, muscle pain, etc. 3、ELECTRODE PATCH: Including 8pcs reusable electrode patches, which can be well fixed on the body. If there is dust, it must be washed with water before use. 4、POWER SUPPLY: The massager is charged by USB and equipped with 3pcs AAA batteries, convenient and practical, and is for home, office or travel. 5、MULTIPLE MODES: The digital massager has a variety of working modes, can be easily adjusted to meet different needs, suitable for the back, neck, waist and legs. Specification： Item Type: Digital Therapy Machine Product Material: ABS Power Supply: USB Charging, 3 x AAA dry batteries (Battery Included) Product Specification: Blue Screen Dual Output, 2 to 4, Power Supply Type, English Product Use: Meridian Massage Package List： 1 x Massager 2 x 1 to 4 Cables 1 x USB Power Cable 3 x AAA Battery 4 Pairs Patches (8Pcs) 1 x Power Head 1 x Sticking Plate 1 x User Manual