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This cordless heating pad with vibration is feature for back relief, but it’s best used while sitting. The belt itself is quite large and heavy, so I wouldn’t recommend walking around during use. I also noticed that the vibration feels significantly stronger when sitting compared to standing. The device offers two main functions : vibration and heating with red light, and they can be used independently. However, if both functions are turned off for one minute, the device will automatically shut down. Vibration Function: There are two 1.5-inch vibration motors with three intensity levels. You can position the motors exactly where you want the massage, which makes it very customizable for sore areas. Heating & Red Light Function: It comes with four lighting modes: - 660nm (bright red light) - 850nm (low light) - F10 (flashing bright light) - ALL (both bright and low light together) - There are also three brightness (intensity) levels for each light option, giving good control over the heat output. Timer & Controls: The built-in timer automatically powers off the device when it ends, which is convenient and safe. By default, the unit starts in ALL red light mode, L2 brightness, level 3 vibration, and a 20-minute timer. Keep in mind that the device does not remember setting changes. Every time you turn it back on, it resets to the default. To prevent accidental button presses, you can short-press the power button to lock or unlock all setting buttons, which is a thoughtful design feature. Battery & Charging: The belt is rechargeable with a 5000mAh battery, making it easy to use anywhere without cords. While charging, the battery level is displayed and the charging indicator lights up. The device cannot be used during charging. When powered on, a short press of the power button shows the battery level again. It’s recommended to recharge when the battery drops below 20%, and the device must be turned off before charging. Important Safety Notes: - When using the heating function at L3, the heat can get very hot. Avoid direct skin contact for more than 15 minutes to prevent burns, and stop immediately if it feels too hot at anytime. - Avoid looking directly at the red light at all times. Overall, this is a powerful and convenient heating and vibration belt with lots of customization options.