Feature 1 The product adopts high quality control chip, and the frequency of ultra-low frequency pulse wave is more stable. 2 No need to connect other devices, plug in the power can be used. 3 Specific 7.83Hz ultra-low frequency waves help to improve sleep, alleviate fatigue and restore physical and mental health. 4 For the create space - to improve creative inspiration 5 For office - to relax and improve work efficiency, Used to create space - to improve inspiration,For the tea ceremony - resting body and mindFeature: The product adopts high quality control chip, and the frequency of ultra-low frequency pulse wave is more stable. No need to connect other devices, plug in the power can be used. Specific 7.83Hz ultra-low frequency waves help to improve sleep, alleviate fatigue and restore physical and mental health. For the create space - to improve creative inspiration For office - to relax and improve work efficiency, Used to create space - to improve inspiration,For the tea ceremony - resting body and mind Specification: Suitable voltage: 100-240V Rated voltage: DC 12V Current: 1A Package list: 1 x Ultra-low Frequency Pulse Generator1 x Power Plug Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.