San Francisco: Amazon on Tuesday unveiled a refreshed lineup of devices optimized for home security and its new artificial intelligence-infused Alexa+ voice assistant. At an event in New York, Amazon showed off Echo speakers, Fire TV streaming devices, a new Kindle reader and improved Ring and Blink cameras, which will be available later this year. The new Blink cameras have a higher resolution for better monitoring inside and outside one’s home, while the improved cameras in its Ring devices also offer facial recognition to help ward off unwanted visitors. The new Ring cameras will also be enabled with Alexa+, allowing the devices through the use of AI to help make decisions like whether a visitor is delivering a package or casing someone’s house for intrusion. Siminoff also showed a separate feature used to help Ring users identify lost pet dogs in their neighborhoods by notifying other community members who have the device.