1. Using micro-current pulses to massage the body can effectively dredge the meridians, promote blood circulation, quickly relax muscles, relieve muscle soreness, and reduce physical fatigue. 2. 6 massage modes, each massage mode has 10 adjustable intensity levels, fully meeting the actual needs of different groups of people. 3. 6-speed timing function: 5 minutes/10 minutes/15 minutes/20 minutes/25 minutes/30 minutes, you can set the most suitable massage time by yourself. 4. The text on the large LCD screen is clear at a glance, and the functions of the buttons are clear, even the elderly can use it easily. 5. The size of this massager is about the same as that of an Apple mobile phone, so it is easy to carry out and is suitable for business trips, travel, office and other occasions. Power supply:DC4.5V, 3 x AAA batteries(Please buy it yourself) Frequency:1-330Hz Power supply:17MA Configuration:1 drag 4 electrode lines (about 93cm) Number of patches:4 pieces Host size:13.5x6x1.8cm Colour:White & Black Material:plastic Package Contents: 1 * host 4 * patches 1 * cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.