CORRECT POSTURE FUNCTION --- This drainage device for the neck, equipped with a vibration reminder, assists in maintaining correct posture through intelligent vibration alerts. This function enhances your appearance, making you look healthier and more elegant. Whenever your back bends beyonds 25 degrees, an immediates vibration alarm sounds, persisting until you straighten your back.ERGONOMIC DESIGN --- The instrument features an ergonomic curved design, comfortably fitting various body parts. Operating within a low-frequency range of 3-60Hz, it gently interacts with the body's bloods vessels, and other sensitive tissues.PROMOTING BLOODS CIRCULATION --- The Ultrasonics Neck Instrument enhances the body's natural processes, facilitating a faster and smoother fluid discharge. This discharge may eliminates cellular by-products and other waste materials.WIDE APPLICATION --- The Ultrasonics Neck Instrument is ideal for office workers who spend long hours sitting and maintaining a fixed posture. It is worn comfortably around the neck.Product Description:Product Name: Ultrasonics Soothing Neck InstrumentCharging voltage: 5VWorking current: 0.12ARated Power: 2WMaterial: ABSRated Power: USB ChargingInclude:1* Ultrasonics Soothing Neck Instrument + 1*USB charging cable