Feature: 1. ADJUSTABLE OUTLET: The funnel of the automatic fish feeder is designed with a sliding cover friction opening, you can adjust the size of the outlet according to the amount of food your fish eat. 2. HEALTHY AND HYGIENIC: The airtight small automatic fish feeder keeps fish food freshness and doesn't allow bait to clog the feeder opening, saving your fish from starvation. 3. WIDELY APPLICABLE: Large capacity aquarium fish feeder is suitable for a variety of foods such as grains, flakes, powders and other fish feeds. Simply open the feed basket to add, no need to remove or disassemble. 4. QUIET AND ROTATABLE DESIGN: This timer fish feeder works at 20‑30 decibels, won't disturb your rest. 360° rotatable design, can be adjusted to your favorite position. 5. TWO FIXING METHODS: The automatic fish food dispenser easily attaches to fish tank lids with a thickness of 0 to 1 inches with the adjustable clip base, or with the specially designed double sided stickers. Specification: Item Type: Automatic Fish Feeder Material: Plastic Power Supply: 2 x AA Batteries, Capacity 1500mAh (with Matching Battery Delivery). Package List: 1 x Automatic Fish Feeder2 x Batteries 1 x Sticker 1 x Instruction Manual