[Overheating protection function dry]: our aquarium pump can withstand 48 hours of heating at dry. With a small pond pump, you don't have to; worry about not having enough water or not having enough water in the aquarium on short trips. Note: It is preferable to avoid combustion at high temperature. [Improve the aquatic environment]: just put the pump on. water in the water tank and the water will start to come out. sink to provide living water for underwater creatures. The pump can be installed vertically or horizontally, and are small in size and easy to clean. hide. Ultra-quiet operation, low consumption. This small garden pond pump requires no disassembly tools.[USB SOCKET IS SUITABLE]: It is no longer a traditional socket, but a USB socket. No more power outages are triggered accidentally. You can still use an external battery to charge the pump.[Increase and develop nitrifying bacteria]: water can slightly increase the dissolved oxygen in the water and develop nitrifying bacteria which help to keep the water clean. Can be used such as aquarium pumps, fountain pumps, pond pumps fish, bird bath pumps, aquarium pumps, small swimming pool pumps, garden decoration, oxygen water circulation, etc.