Aqua Medic SmartDrift 3.1 is a compact, powerful and very quiet flow pump for marine aquariums to create a soft flow. In addition to the included controller, the pump has an app control with smartphone or tablet to regulate the flow rate and wave frequency. The SmartDrift pump is a magnetically coupled current pump and very quiet in operation. It has a fully encapsulated synchronous motor. All materials are salt-water resistant. The pump is operated at 24 V DC safety voltage, with the power supply included. The pump is adjustable.Aqua Medic SmartDrift 3.1+ control and programming via App (iTunes and Google Playstore) or manually via the controller+ simultaneous control of several pumps possible+ multiprogramming of pumps via master-slave or cross-flow possible+ different flow patterns can be set+ feeding pause at the touch of a button+ new flow pattern due to innovative impeller technology ensures extreme smooth running+ polished ceramic shaft and bearings for quiet operation and low