[Features] Anti Snoring Devices :Reduce snores while sleeping and improve sleep quality. Snore Stopper Wrist :The watch has a scientifically designed bio-sensor that detects when the user is snoring. Anti Snore Wristband :When three consecutive loud snores are detected it sends out a very gentle electrical wave to the snorer this kind of light stimulation doesn't wake the snorer but rather makes the snorer reflexively stop, like being nudged by a partner. Anti Snore Watch :The bracelet is designed to provide maximum comfort and convenience anytime, anywhere. [product information] product name:Electronic Stop Snoring Watch color:black Packing list (you can get after purchasing one item): Electronic Stop Snoring Watch * 1 Please understand: 1.Due to the long shipping time, the item may be damaged during the shipping process, if the item is damaged, please leave us a message through the official website immediately before posting comments, and I will solve the problem for you. 2.Due to manual measurement, the size may have an error of 1-3cm. 3.Colors may vary from monitor to monitor.