DUAL POWER When the AC power supply fails, the battery power will be available. Power battery, With three D alkaline batteries (Not included in the package). You can choose the appropriate diet according to your needs. Infrared detection Built-in infrared detection can prevent food overflow or blockage and let your pets enjoy meals. this system can be adapted to all forms of dry foods. Voicemail Recording: Even if you are not staying in the house, you can record a voicemail to call dogs or cats to eat or drink. This dispenser can record your voice for 10 seconds to call pets for meals. You no longer have to worry about your pet forgetting to eat or feeling lonely. Time and amount of pre-set feeds prcise Accurate feeding, control the amount of feed and keep your pet healthy This automatic feeder can provide 4 possible meals in a day, you can pre-program the time to which you want your pet to eat and the amount of each meal (from 5g to 100g per meal, there are 29 servings, 5g for one portion), the dispenser can operate automatically every day. Easy to Clean and Non-slip The storage tank can be separated from the body, and the stainless steel feeding bowl design is convenient for cleaning, and can also be cleaned more cleanly. The base is stable and non-slip, so that the bowl does not fall out when the animals eat. Product description Size: 3.5L Specification: Power: DC 5V / 1A (or size 3 * 1 battery) Power: 1.5 W measured: 1.9 W BodSize: 19.5 * 18 * 36cm Recording duration: 10s Stainless steel bowSize: 18.7 * 18.7 * 4cm Feeding amount: 1-20 servings Servings Per Rack: 5g Actual Measure: 7g Plastic basin: 18.5 * 18.5 * 4 cm Feeding time per day: 4 times USB cable length: 1.5 m AC 100-240V 50 / 60HZ DC 5V / 1A Overcurrent protection: 1.3 A Short-circuit protection: yes