No. S330/300 eufyCam cannot work standalone and it needs to be connected to eufy S380 HomeBase (HomeBase 3).

One eufy HomeBase 3 can pair up to 16 cameras + 34 other compatible devices. However, it is recommended to set up devices on multiple HomeBases when more than 10 cameras need to be added to the eufy Security app for optimal performance.

Please refer to the following instruction on how to set up the S330/300 eufyCam (eufyCam 3/3C) on HomeBase 3: Setting Up S330/S300 eufyCam (eufyCam 3/3C) in the eufy Security App 

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