Material: ABS+304 stainless steel.Capacity: 4L.Voltage/current: 5V/1A.Applicable particle diameter: 3~8mm.Product size: 28.51918.5cm.Product weight: 1.45KG.Product features: stainless steel bowl, timing and quantitative, moisture-proof and insect-proof, dual power supply, 4L large capacity, sealed soft rubber cover. Freshness-locking activated charcoal package Extends the shelf life of freshness. Activated charcoal has strong water absorption, which can relieve the humidity factor in the air, deodorize and prevent mildew. Silicone sealing ring:The built-in widened and thickened silicone sealing ring isolates air and prevents food from oxidizing. Forced push design, bid farewell to food jams, forced push food delivery design, effective prevention of food jams, so that pets can rest assured. Concealed and sealed grain outlet, the grain outlet is recessed and hidden, and it is sealed in time after the grain is delivered to prevent pets from stealing food and cockroaches from entering the grain storage barrel. The 45 steep slope is designed so that the food does not get stuck. Smooth meal delivery, no food clogging, safe feeding, no peculiar smell, more durable, more environmentally friendly, and no pollution. It can be disassembled and washed at will, and the upper and lower barrels are separated. Two power supply methods,The dual power supply refuses to run out of food. Plug-in/battery dual-use, three AA high-capacity batteries, a total of 30 days of use (battery not included).