12V Heating Pad for Back, Neck, Period Cramps Pain Relief,USB C Heating Pad with 2hrs Auto Shut Off, 3 Heating Levels,Moist Infrared Heating Pads,11.8" x23.6”?No Built-in Battery?

Features

• Safety: USB C heating pad operates at 12V with no risk of electric shock, 2-hour auto-shutoff ensure safe even you fall asleep, NTC & Thermal Protector preventing over heating,safety first.
• High-level Heat Technology: Graphene material designed to concentrate heat for deeper penetration to your back, arms, legs, shoulders and other parts of body.This 12V heating pad good for knee either.
• Multi ways of power supply: Work with USB-C PD 12V Power sources above 20W like USB-C PD charger and Power bank.This USB-C Heating Pad is suitable for multiple scenarios,including the home,office,patio,car,camping and more.(Power bank not included) Using a charging device that does not provide at least PD 20W of power will result in the product failing to turn on or being unable to reach the specified working temperature.
• Friendly design: Graphene sheet instead of heated cord; Easily cover the curves and shape of your body. You no longer have to put up with a stiff heated pad.Mini controller with 3 heat setting no complicate settings,USB-C interface instead of big hard plastic cord attachment,Skin friendly material
• Energy Efficient: less than 20W/h power helps conserve energy,only 1/3 or 1/4 power of traddional heating pad,Truely eco friendly.If you are dissatisfied with our 12V Heating Pad,please contact us immediately. Within the period of warranty, we are glad to offer replacement or refund to every customer!
• PD 20W Heating Pad：Requires 12V Power Supply Only – Not Compatible with Standard Power Banks! Must Use 12V/1.67A Adapter (5V Power Banks Will Not Work)"