Sized to fit standard 14-inch stands, or place it flat for an attractive ground-level bird pool anywhere. A built-in rechargeable battery and integrated solar panel ensure continuous, eco-friendly operation. No Two-way Audio (Only Microphone). Holds 2.3L of water. Enjoy vivid 1080P video lifelike motion view of every bird\u2019s movement. Modular Design with 20% Recycled Material. AI Recognition of 6,000+ Bird Species. Driven by Birdfy OrniSense AI, get instant identification, smart alerts, and a richer birdwatching experience lifetime free service. Watch right from your phone by downloading the Birdfy app (free) Must have 2.4 GHz Wi-Fi