Features: 1. Through low-cycle pulse technology, penetrate 3-5 centimeters the skin to open the pain points and meridians, and lighten the pain of spine. 2. Constant temperature massage. Hot compress at 42 can relax blood vessels, relax muscles and bones, accelerate blood circulation and relieve pain. 3. 3 massage modes and 15-step force adjustment. Acupuncture and moxibustion mode, massage mode and knocking mode. 4. Shut down at regular intervals. The default 15 minutes after automatic power failure, , more . 5. USB charging. big battery, for 2 hours, massaged for 15 minutes every day, lasted for about . Specifications: Size: 142 x 138 x 60mm Weight: 400g Charging mode: USB Voltage parameters: DC5V; 1A; 5W Built-in lithium battery capacity: 450mAh Duration: Massage 15 minutes a day for about . Mode: Acupuncture and moxibustion mode, massage mode and knocking mode. size: 15 x 15 x 5cm Material: ABS colour: as shown Package Contents: 1 x host 2 x electrode pad 1 x USB cable 1 x remote control 1 x instructions 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.