The Arlo Essential Wire-Free AVD2001 Wi-Fi Smart Video Doorbell is a wireless security camera that operates on battery power. It features Wi-Fi connectivity and is part of Arlo's line of security cameras and surveillance systems. This white video doorbell, manufactured in 2001, offers smart home functionality through its Wi-Fi capabilities. It comes as a standalone product, making it ideal for those looking to enhance their home's security with a reliable and easy-to-install smart doorbell.