A "Massage Gun" for muscle use. Here is a translation and summary of the technical specifications mentioned in image.png: Technical Specifications: Input Voltage: 5V. Interface Type: Type-C. Main Material: ABS plastic. Use Environment: Withstands temperatures between -5 to 40 degrees Celsius, not waterproof. Power Supply Mode: Rechargeable lithium battery. Product Weight: 550 grams. Product Size: 132 × 134 × 50 mm. Motor Power: 25W. Additional Features: It comes with four specialized massage heads of different shapes to target specific muscle groups for faster muscle recovery, and they are easy and quick to change. It features a long-lasting battery and operates quietly (as shown in image_2.png).