Portable and Powerful - Unlike large sealers, this product is small and portable, suitable for both kitchen and outdoor camping. At the same time, this product is more powerful than other portable sealers. It can seal quickly and is effective for thicker bags.^ Rechargeable - The product has a built-in rechargeable battery with a capacity of 1300mAh and is equipped with a Micro usb interface. You can use a computer or mobile phone charging head to charge it. After charging, the device usually lasts for more than one month. It is more environmentally friendly than portable sealers that require batteries and can save you a lot of battery costs in the long run.^ Cutting and Sealing - This device can not only seal the bag, it also has a cutting function, you can use it to open the bag or make the sealing more neat. The product is in the sealing mode by default, if you need to use the cutting function, please turn the knob from "+" to "-" (rotate 180 degrees clockwise).^Power selection- The product uses medium power by default, which is suitable for most bags except fresh-keeping bags. Switch the device to low power when sealing the fresh-keeping bag, otherwise the bag will be melted by the device and the sealing will fail. High power is suitable for extremely thick or heat-resistant bags. If the equipment cannot affect the bag, please try to switch to high power.^ Safe and Reliable - The device has a narrow opening, which can prevent the heating coil and cutting blade from accidentally hurting your fingers. When you do not need to use the device, please turn the knob to the position between "+" and "-", it cannot be pressed down When the knob is in the middle position, this can prevent the device from being accidentally started.