Features: 1. Micro-current pulse activates stiff muscles, effectively relieves muscle soreness, relieves physical fatigue, and gives you a comfortable massage experience. 2. 8 modes and 18 levels of intensity can be adjusted to meet the massage needs of different groups of people. 3. Suitable for different parts of the body, such as abdomen, arms, back, neck, legs, waist, etc. 4. Intelligent power-off function, the default is to automatically shut down in 15 minutes; when the host is turned on, without touching the skin or without any operation, it will automatically jump back to 0 after 5 seconds, and automatically shut down in 30 seconds. 5. Our EMS massager is mini and lightweight, supports folding and storage, and is easy to carry, allowing you to have a massage SPA anytime, anywhere. Note: It is recommended to use 1-2 times a day, 15-30 minutes each time, the effect is better. Specification: Material: PU Product Color: Black Product Size: 20.3 x 13.3 x 4.2cm Product Weight: 155g, 190g Working Current: 9.8ma Working Voltage: 3.7V Working Frequency: 1-100Hz Recommended Ambient Temperature: 10-40C Quiescent Current: Less Than 10A (measured 3.7A) Battery Type: Rechargeable Polymer Lithium Battery 150mAh (402030), Charging For 2 Hours, Can Be Used For 3-6 Hours Optional: With Remote Control, Without Remote Control Package Included: 1 x EMS Cervical Massage Patch