【RVE Technology】 MYTREX's iRhythm utilizes random vibration echo technology, providing a relaxing effect by gently tapping around the eyes. 【Comfortable Design】 The slim and stylish design is perfect for travel and everyday use. The black color suits any situation. 【Improved Sleep Quality】 Made with medical-grade silicone, it's gentle on the skin and provides a comfortable feel. It's the perfect item to improve sleep quality. - Brand: MYTREX - Model Name: iRhythm - Technology: RVE (Random Vibration Echo) technology - Function: Tapping around the eyes, relaxing effect - Purpose: Improve sleep quality - Design: Slim and stylish - Color: Black - Features: Uses medical-grade silicone Used only once for testing. The box has some minor scratches. (See images) Thank you for viewing.