Feature 1、With timer function, flexible setting of timing and quantitative, weekly or daily feeding. 2、Multi‑period setting, different number of laps to set feeding time to meet various needs. 3、Easy to set up and install, it ensures that you will never forget a feeding due to holidays or busy weekends. 4、Automatic feeder, adopts plastic materials, durable and corrosion‑resistant, and not easily affected by moisture. 5、While feeding fish, the fan blows the feed to keep the feed dry, which is suitable for aquarium fish tanks. Item Type: Fish Feeder Material: Plastic Product Battery Information: 2 x AA Batteries (Battery Not Included) Product Use: Intelligent Feeding Weight: Approx. 306g / 10.8oz Product Size: Approx. 13.5x7.5cm / 5.3x3.0in How to Use: 1. Open the battery cover and install 2pcs AA batteries (not included). Press the manual button on the upper part of the display screen to check whether the feed barrel rotates normally. 2. Remove the feed tube, open the bottom cover of the feed tube, close the feeding door on the upper part of the feed tube, put in an appropriate amount of feed, and then reinstall it on the host. 3. It is necessary to set the feeding time and frequency. Package List 1 x Fish Feeder (Battery Not Included) 1 x Fixed Clamp 2 x Plastic Screw 1 x Manual Note 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.