Product information: Power: 1W Voltage: 5V Current: 1A Working time: 36 hours(10000mAh Power Bank) Plug: USB Material: Silicone Colors: Army Green, Navy Blue, Red, Light Blue, Yellow, Green, Black Pipe Length: Approx. 1m USB Cable Length: Approx. 1m Size(L)x(W): 7x3cm / 2.76''x1.18'' Contents in Box: 1 x Aquarium Air Pump 1 x Pipe 1m 1 x Air Stone 1 x Aluminum Buckle More information about product: Powerful, safe and reliable performance, large exhaust volume. Longer use time, 24 hours of continuous use. USB interface is more convenient,small and portable and everyone can operate it. Mute.In the living room, bedroom, office and other quiet environment, there is no sound and can provide a better using experience for you.