Describe: Net Content: 1set Product weight: 63g (without battery) Single item weight: 135g Product size: Host (125*65*20)mm Power storage method: 3 AA batteries / USB power supply Shelf Life: 3 years 1. Utilizes advanced pulse technology to effectively stimulate muscle contraction, helping to relieve muscle fatigue and soreness in the back, neck, and other parts of the body. 2. Portable design, lightweight and easy to use, allowing you to enjoy a professional-grade muscle relaxation experience anytime, anywhere. Suitable for home, office, or travel use. 3. Multiple intensity levels and massage modes are available to meet the needs of different users and provide a personalized and comfortable massage experience. 4. Safe and non-invasive, the electrodes act directly on the skin to promote blood circulation, aiding in exercise recovery and daily relaxation. 5. Suitable for multiple parts of the body, including the shoulders, neck, back, arms, and legs, achieving comprehensive muscle care. Comments: 1. Manual measurement tolerance. Please do not mind. 2. Due to differences between various displays, the color of the picture may not accurately reflect the actual color of the product. Please refer to the actual item. Thank you very much! 3. SKU color refers to the color of the product packaging. Package Includes: 1 * EMS Electric Muscle Massager