Features: - Beautiful Design: Magnetic open & close, fully enclosed, compact and easy to carry, Wireless. - High Frequency Vibration: Clinically proven high frequency vibration, significantly shortens treatment time and discomfort. - 3D mold technology: Variable hardness molded vibration tray ensures high efficiency of vibration with best comfort. - Powerful Battery: 450mAh lithium battery, one charge can last 15 days. - Disinfection: 2 UVC+UCA kill bacteria; 3-minute working circle once the cover is closed, auto-switch off once the cover is open. - Color: Black.