This vacuum sealing machine is easy to use, press the switch to automatically suck the air out of the bag and you can press again to stop. The vacuum degree can reach -40Kpa and the strong suction makes the packaging tighter. Equipped with a rechargeable USB data cable, which can be charged at any time. Is Can keep food fresh whether it is meat, fish, grain, fruit or vegetable want to vacuum. Not only can be used to keep food fresh in the kitchen, but also to vacuum compression bags for clothes in daily life. The vacuum bag is made of high-quality PA and PE materials, and does not contain BPA. eco-friendly and easy to clean. It can be recycled multiple times. Suitable for sous vide cooking. The sealing date can be noted on the pouch. Convenient & Portable design The vacuum sealer is very light and convenient to use, ideal for home kitchen or outdoor activities such as picnics, barbecues and camping, it is very convenient to preserve food. Attention: When filling food into the vacuum bag, please do not exceed the dotted line on the valve connection. Remember to firmly press the valve connector by hand after finishing work to avoid air leakage.