<b>Specifications</b><br> ◆ Product Name: Nagaros USB Bag Sealer<br> ◆ Product model: F3-pro<br> ◆ Battery capacity: 1300mAh<br> ◆ Product Size: 122x48x56 mm<br> ◆ Product weight: 120g<br><br> <b>⚠ The key to making the product work well ⚠:</b><br> 1.The product uses medium power by default, which is suitable for most bags except fresh-keeping bags. Switch the device to low-power mode when sealing the fresh-keeping bag, otherwise the bag will be melted by the device and the sealing will fail. High-power mode is suitable for extremely thick or heat-resistant bags. If the equipment cannot affect the bag, please try to switch to high-power mode.<br>2.Do not press the knob too hard in the sealing mode, otherwise the opening blade may accidentally take effect and cut the bag.<br><br> <b>How to Seal:</b><br> 1.Press the power button for 3 seconds to start the device.<br> 2.Press the power button to select the appropriate power.<br> 3. Make sure that the knob is at "+" before sealing. <br>   (Note that the knob can only be rotated in the following directions: If you need to switch from "+" to "-", please turn the knob clockwise; if you need to switch from "-" to "+", please turn the knob counterclockwise .)<br> 4.Press the knob to make the device clamp the bag to be sealed, and drag it at a constant speed to complete the sealing.<br><br><b>Scope of application:</b><br> This product is a heat-generating sealer that can seal common plastic bags made of Coated aluminum foil, polypropylene, polyethylene, and vinyl chloride.<br><br> <b>1-Year Limited Warranty</b><br><br> Nagaros-US warrants to the original retail purchaser that this product is free from defects in material and workmanship, and agrees to repair or replace, at Nagaros-US option, any defective product within 1 year from the date of purchase. This warranty extends only to Amazon consumers.<br>