Woot is seeling the original XT Camera. The current version is the XT2 Camera.
From the Blink XT2 FAQ:
“What is the difference between the XT and the XT2?
The Blink XT2 has two-way audio and the ability to record while in live view. The XT2 camera also features customizable motion detection and double the battery usage of the XT on a single set of batteries when recording video.”
https://support.blinkforhome.com/new-features/blink-xt2-faq
Blink XT2 add-on cameras go for $89.99 on Amazon right now, new.