Item Type: Electric Neck Massager_x000D_Material: ABSApplicable Symptoms: Neck pain, cervical spine stiffness, back discomfort_x000D_Symptoms applicable to each gear:_x000D_1~5 Gears: Suitable for daily neck care_x000D_6~10 Gears: Suitable for chronic cervical spine strain_x000D_11~15 Gears: Suitable for stiff neck and neck injuries_x000D_Power Supply: Lithium battery_x000D_Battery Capacity: 400mAh (Included)_x000D_Instructions:Operation method before use:_x000D_First, moisten the skin of the cervical spine with a wet towel, and then put the product on the neck so that the electrode pads are close to the skin of the cervical spine and adjust the product position.Switch machine:_x000D_Long press the power button for 2-3 seconds, the buzzer will beep once and the blue light will light up to enter the default mode, the default gear (0 gear). When it is turned on, press and hold the main unit for 2-3 seconds, and it will shut down after hearing a beep, and the blue light will be on._x000D_Mode selection (currently 5 modes)_x000D_After the product host is turned on, short press the power button to switch modes in a cycle. There are 5 modes in total, every time you short press, you hear a beep, switch modes, and the five modes can be switched in cycles (Note: M1 mode, M2 mode, M3 mode, M4 mode, M5 mode). After each mode switching, the default gear is 0 gear.Gear (strength) selection:_x000D_1. In the power-on state, the "+" on the main unit of the product is the strength strengthening button. Each time you press it, you will hear a beep, the strength will increase by one level, and the strength will be divided into 15 levels (0.1, 2..15). Press the "+" level again when the intensity is 15 to make two beeps, the intensity remains unchanged, and the 15 level is maintained._x000D_2. The "-" on the main unit of the product is the force reduction button. Each time you press it, you hear a beep, the intensity decreases by one level, and the force is divided into 15 levels (15, 14. 13...0), and the force is 0. When pressing the "-" file again, there will be two beeps, the intensity remains unchanged, and the 0 position is maintained.Heating options:_x000D_1. Double-click the switch on the main unit of the product, and turn on the heating function with two beeps. A constant temperature of 42C is gradually reached within 30 seconds._x000D_2. In the heating mode, double-click the switch on the main unit of the product, and the heating function will stop with two beeps.Timing function:_x000D_1. The product host is timed for 15 minutes. When the product host is turned on, it will automatically shut down after 15 minutes of use. It must be turned on again after use. It is recommended to use it for no more than 30 minutes a day._x000D_2. When the product host is turned on, the product will automatically shut down within 3 minutes when the product is not worn and used normally. 1Use low?frequency pulse technology to conduct, deep into the underlying nerves of the muscles for soothing and relaxing. 2Electrode pads of massager quickly heat up to a constant temperature of 40C, which softens the stiff neck muscles and promotes blood circulation. 3According to the situation of each person's physical force, there are 15 gears of strength to choose from. 4Made of lightweight materials and is very comfortable to wear. It folds up and puts it in the equipped storage bag, which does not take up space. 5Built?in high?capacity lithium battery, USB interface, fast charging, mobile power and computer can be charged. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin