Features:*Low Consumption,Brand news batteries can last more than 6 months in the normal working condition. *The product combines the funcions of moistureproof and crush for foods. *After twist the rotor, it will rotate and stop at the position where the feeding stops. *Can be Adjusted the capacity of feeding by setting the switch on the food container. *Two Mode Optional,Once or twice feedings can be set within 1 day in the "Auto" Mode.Anytime's feeding can be done in the "Manual" Mode. Specification:Color: Black&Yellow Housing: Plastics Mode: Once or twice feedings can be set within 1 day in the "Auto" Mode.Anytime's feeding can be done in the "Manual" Mode. BatteryType: 2*AAA batteries (included)  Operating Manner:*1. Loading 2 pics "AAA" 1.5V Alkaline Batteries on the bottom of the machine *2. Screw and fix the feeder on edge of tank by using the plastic screw or Stick the feeder on Suitable position on aquarium by sticking the two velcros on the bottom of the feeder. *3. Time setting: "Manual" key to feed manually, "Auto" key feed automatically. *4. As the drum can only contains about 50g baits, it is not a product for long-term travel. IMPORTANT: Time Setting "Manual" key to feed manually, "Auto" key to feed automatically. Press "Auto" once, light named 24h is on.feeding starts immediately and restarts after 24hs; Press "Auto" second time, light named 12h is on. feeding starts immediately and restarts after 12hs. Press "Auto" third time,auto feeding function stops. Lights will be off every time when you finish your setting.  Packing:1X Fish Tank Automatic Feeder