These cameras have a 100+ decibel siren that you can trigger via the Arlo app.
Brad's Deals Editor Michael,
The Arlo Pro 2 Two-Camera HD Wireless Security System drops from $399.99 to $199.99 with free shipping at Verizon. This is the best price we found by $100! The wireless Arlo Pro 2 cameras can be controlled with voice commands when paired with a Google Nest device or an Amazon Echo device. Sales tax is charged in most states.