ARRIS Lower Back Heating Pad/Heating Waist Belt Wrap w/7.4V Rechargeable Battery Heat Therapy, Pain Relief for Back Waist Abdominal Stomach Lumbar Thigh Muscle Strain, for Men Women …

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About Hot and Cold Therapy: 
Heat or Cold Therapy could stimulating your body's own healing force. Heat therapy dilates the blood vessels, stimulates blood circulation and reduces muscle spasms, while cold therapy helps to minimize inflammation and pain. 

Note: 
1. It supports 1 hour working in high temperature, 2 hours in medium and 3 hours in lower after fully charged.
2. Cold Therapy: Built with a net pocket for ice bags, it could be used for cold therapy as well. (Ice bags not included, and please do not charge it when you use cold therapy) 
3. If you are temperature sensitive, please wear cloth underneath. 
4. Please give it time to work. It could not get heated at once. 
5. Washable: It is hand washable, but please do not use it if it was not completely. 

Package Includes:
1 x Heated Waist Wrap
1 x 2600mA 7.4V Lipo Battery
1 x Wall Charger
1 x Manual 

How to Use (3-way switch refers to button switch on the waist Belt). 
1. Plug the power cord into 7.4v rechargeable lipo battery. 
2. Turn on the battery by pressing the power button (Note: the 3-way switch will flash red, white, blue in turn at the same time). 
3. Press the 3-way switch for about 3 seconds, red LED will be on, now the heating system on the vest starts to work. Sometimes, when press the 3-way switch, red LED will be not on, while flashing, please don`t worry, this means the heating system is in self-inspecting. We can just do the following step: Press the 3-way switch in turn (red-white-blue-red), then it will work again. 
4. Press the 3-way button switch to adjust the temperature: Red for high (65℃), White for Medium (55℃), Blue for low (45℃).