Specification: Item Type: Body Meridians Massage Pen Material: ABS 6 Massage Techniques: scraping massage, tuina massage, head massage, finger pressure massage, point massage etc. Battery Capacity: 500mAh Size: Approx. 19 x 3.5 x 2.5cm / 7.48 x 1.38 x 0.98in How to Use: 1. The correct posture of holding the instrument: like holding a pen, there is a backflow sheet on the back of the instrument, and when the skin between the thumb and index touches the backflow sheet, the backflow can be formed. 2. Long press the power button for 3 seconds to switch the machine. The default value is 0 when the machine starts up.(No output, adjustable electric gear position of front end); The machine has 2 outputs, the patch and the massage head are independently controlled, can be used alone or at the same time. 3. After the machine is turned on, the output gear of the massage head is displayed (the lower right corner of the digital tube is light). Press "+/‑" to adjust the corresponding strength, and the range is "0‑9". 4. Replace massage head: this instrument comes with different massage heads, when replacing, rotate and screw off, and then rotate and tighten it. Package List: 1 x Intelligent Meridians Pen 4 x Massage Heads 1 x Electrode Line 8 x Electrode Patches 1 x English Instruction 1 x USB Charging Cable Note: The instrument has been set to automatically shut down within one hour, for the sake of safe, to prevent the misoperation during transportation or at ordinary times, to avoid the continuous discharge of the instrument.