Automatic Fish Feeder - Rechargeable Timer Fish Feeder With USB Charger: Product Variation:Shipped based on the color or size of the main image on the product page. Dual Power Supply:Can be Powered by USB or batteries, eliminating the need for frequent battery purchases, thus promoting energy efficiency and environmental conservation. Extended Operating Time:Equipped with a large-capacity lithium battery, capable of up to 800 charge cycles. With the number of feedings set, it can operate for 3-6 months on a single charge. Large Capacity:Features a 200ml feed bucket, accommodating various types of fish feed such as granules, flakes, and powders. Intelligent Design:Allows for up to 4 feedings per day, with 1-3 feedings per session. Additionally, manual feeding is possible, offering the experience of hands-on interaction. Compatibility:Suitable for 600L (158 US gallons / 131 UK gallons) fish tanks. Ideal for feeding goldfish and turtles during weekends or holidays.