Usually, it is easy to suffer from physical fatigue, feel exhausted and become absent-minded after driving for a long time that weakens the safety on the journey to some extent. This car refresher is designed to relieve your shoulder pain, drowsy head and tired neck through the vibration massage, and provide you with Nano water spraying to compel attention on a long journey. Three vibration massage modes features different frequencies motors with intermission for optional. When it runs out of po