Description Specifications: Rechargeable Product Material: ABS + Stainless Steel Working Power: 0.5W Battery Capacity: 500mAh Charging Time: Approximately 1.5 hours Product Accessories: Main unit x1, Silicone case x1, USB charging cable x1, Chinese and English instruction manual x1, Certificate of Conformity x1, Sponge x1 Color: As shown Features 1. Utilizes TENS pulse technology, gently stimulating nerves through a handheld design to help quickly relax the mind and body, improving sleep quality. 2. Compact and portable, easy to operate, no medication required, suitable for use at home, in the office, or while traveling, improving sleep quality. 3. Intelligently adjusts multiple pulse modes, customizing the relaxation experience to individual needs, effectively relieving stress and anxiety. 4. Safe low-voltage design, no side effects, safe for long-term use. Precautions: 1. Due to manual measurement, there may be an error of 2-5 grams. Please understand if a replacement is needed. 2. Due to monitor differences, the image may not reflect the actual color of the product. Thank you very much! 3. The SKU color is the product packaging color. Package includes: 1 * Handheld Sleep Aid Device