Body and Hand Massager Model: Chinese 2341 The device is used to relieve muscle pain and massage different areas such as the back and neck. It works by vibration and features multiple speed levels. Its design is wireless and rechargeable via USB, and it is made of high-quality material. Performance and Functions: Multiple Vibration Patterns: Not limited to a fixed speed, it usually supports several vibration patterns (pulsating, intermittent, continuous) to suit the user's preference and relieve muscle spasms. Powerful and Quiet Motor: It has a high-density internal vibration motor that works efficiently while maintaining a low noise level for better comfort during use. Water Resistance: The silicone head is often water-resistant (IPX7 standard in some models), making it easy to clean and wash after use.