Specification Item Type:Smart Neck Massagers Color:White Material:ABS Power:6W Charging Time:4 Hours Temperature:42 Charger:5V 1A Weight:170g Size:14*14.5cm/5.51*5.71in Tips Before use,use a small amount of water to wipe the conductive sheet or wet towel to wipe the use site! Features 1)High frequency mute: noise reduction design, 0-20 decibels, very quiet, almost no sound 2)Lightweight and comfortable: 170G, light and thin, more comfortable to wear 3)Full s bracket: softer, less pressure, neck size fits 4)Micro-curved surface design: ergonomic design, fits the skin surface 5)Soft s inner arm pad: skin-friendly soft s inner arm pad 7)Strong endurance: built-in lithium battery, USB charging, one charge, 30 minutes of daily use, 15 days of sustainable use, long battery life. 8) pulse Massagers: low-frequency pulsed electromagnetic current is conducted to the skin, and by activating the cells of the human body, it prevents soreness caused by muscle stiffness. 9)Warm care at 38~45: like a hot towel on your shoulders and neck, breakthrough hot compress temperature setting 10)4 modes: Automatic mode,acupuncture mode,hammer mode,kneading mode 11)15-speed Inity adjustment, 6-head Massagers: accurately cover the 4-7th cervical spine peripheral Massagers, just cover the common pain area of the cervical spine. People who should not use this product 1.1.People who are undergoing disease treatment or those with obvious physical discomfort must consult a doctor before use 2.2.Take good care of children to ensure that they do not play with this product. 3.3.The product has a hot surface, so people who are not sensitive to heat must pay attention to it when using it. 4.4.Patients with allergic constitution heart disease and other people with electronic devices in their bodies should be used with caution 5.5.This product is not intended to be used by someone,including children who are physically impaired, sensory or mentally impaired, or who lack 6.6.elevant experience and knowledge Note 1.DO not use when taking a shower or bathing. If this appliance falls into water, please pull out the plug immediately 2.DO not use in a humid environment, do not put this product in water or other liquid 3.DO not use needles or other metal objects to fix this product, do not use unrecommended accessories and accessories, and do not use it in the case that the appliance shell or power cord is damaged 4.DO not use this appliance when you are drunk or feel unwell. Do not use this product within one hour after a meal. 5.