Feature: 1. Upgrade 4pcs massage heads, 4 times the pulse massage effect, massage area is larger. 2. 9 Levels adjustable force (1‑3 soothing massage, 4‑6 strong massage, 7‑9 stimulating massage). 3. Small and lightweight, like wearing a headset, very convenient and portable. 4. Press button to use, easy to operate, better care for your neck healthy. 5. 42℃ Thermal red light therapy for heating type, come with USB cable for easy charging. Specification: Condition: 100% Brand New Item Type: Neck Massager Material: ABS Optional Color: White, Red Optional Type: Charging, Charging Heating Rated Power: 3W Massage Strength: 9 level Massage Head: 4 massage heads Massage Duration: 15min/ time Rated Voltage: 3.7V Massage Mode: 6 modes Battery Capacity: 1000mAh Charging Time: 1-3H Heating Type Temperature: 42℃Usage:Press "+" and "-" to switch the power on with one button, and a beep sound will be heard every time the switch is successful. Package List: 1 x Neck Massager1 x USB Cable Note: A small amount of water should be applied to the conductive sheet or use wet towel to wipe before use.