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 usb interface. You can use a computer or mobile phone charging head to charge it. After charging, the device usually lasts for more than five month. It is more environmentally friendly than portable sealers that require batteries and can 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 (rotate 180 degrees clockwise). Power selection- The product uses medium power by default, which is suitable for most bags except -keeping bags. Switch the device to low power when sealing the -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 , it cannot be pressed down When the knob is in the middle position, this can prevent the device from being accidentally started. Product name: portable sealing machine Bag width: double heating wire, width about 3MM Rated input: DC5V-1A Switch type: long press small button + knob double safety Battery capacity: 1300MAH colour:Blue Material:ABS size:120 x 40 x 50mm Package Contents: 1 x Sealing machine 1 x USB cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.