Labor Day deal: The Blink Outdoor 4 security camera typically costs $100. Right now, you can get a two-pack of them for $90 -- a discount of more than 50% -- on Amazon during its Labor Day sale .

CNET's key takeaways

The Blink's Outdoor 4 security camera comes with lithium AA batteries that lasted me well over a year, unlike competitor cameras that need frequent recharging -- as often as every month.

The Blink Outdoor 4 is one of the more affordable cams, at about $100, and it can often be found on sale.

The Blink app is limited to Alexa support only, meaning you cannot connect with Google, Apple or other third-party smart platforms.

Blink's Outdoor 4 cam came with a big promise when I first started reviewing it: Lithium AA batteries that could last for two years without need

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