1. Continuous Vibration: High-frequency sound wave vibration evenly and continuously stimulates muscle vitality, dredges meridians and relieves neck muscles.2. Simple Operation: Slide the instrument down towards the meridian through the shoulder while dredging the meridian and promoting meridian detoxification.3. Multiple Wavelengths: LEDs of different wavelengths have different optical effects on the human body, which can promote collagen production and reduce fine lines.4. Ergonomic Design: Optimized design that conforms to ergonomic theory, transports energy to each part of the skin and restores cell viability, promotes fibroid growth and collagen.5. Powerful Function: Facial device removes facial and neck wrinkles, makes your skin smoother and brighter by combining with skin care product. Specification: Item Type: Neck Skin Tightening Device Efficacy: Dredging meridians and nurture mammary glands, push instrument through shoulders toward meridians, promote meridian detoxification while dredging meridians />Power supply mode: USB data cableUse:Charge the battery before use, press the button to select the appropriate light mode, and massage the neckPackageList:1 x Neck Beauty Instrument1 x USB Data Cable1 x Manual