If you want to purchase Amazon's Echo for Christmas or Hanukkah online, you're out of luck. All versions of the Echo, powered by voice activated digital assistant Alexa, are sold out on Amazon's site and won't be available until after the holidays. Going after other Alexa devices, like the Echo Dot, won't help either, since those are sold out too. When Will Amazon Echo Be Available? Amazon Echo in black, priced at $139.99 will be in stock on Jan. 19, 2017.

Amazon has started its drone delivery trial in Cambridge, UK, the company announced Wednesday. In a tweet, Amazon CEO Jeff Bezos revealed Amazon Prime Air, which promises to deliver packages with small drones in 30 minutes or less after placing an order. The company did not say when the service will be available. "We will deploy when and where we have the regulatory support needed to safely realize our vision," said Amazon. "We're excited about this technology and one day using it to deliver packages to customers around the world in 30 minutes or less."

Amazon wants to put its digital voice assistant, Alexa, into as many devices as possible. For help, it's partnering up with more chipmakers to make it easier for outside developers to get Alexa up and running on devices like speakers, thermostats and wearables. On Wednesday, Conexant, maker of audio processing chips, announced it's releasing a development kit approved by Alexa Voice Services, which is Amazon's program for hooking up third-party products to Alexa in its cloud. The kit provides hardware developers with two microphones and a processor loaded with software for picking up the "Alexa" wake word. The kit is supposed to enable devices to recognize the wake word in noisy environments. Similarly, chipmaking giant Intel announced last week that it would be integrating Alexa into its smart home platform kit, called the Smart Home Hub.

Amazon is teaming up with semiconductor and voice solutions provider Conexant to bring Alexa to even more devices, the companies announced Thursday. The companies plan to expand the market of voice enabled digital assistants powered by Amazon's Alexa with the creation of the AudioSmart 2-mic Development Kit for smart home appliances. The kit is designed to connect to a Raspberry Pi, a small, credit-card sized computer which can be used in electronics projects. This will allow third-party manufacturers and developers to create Alexa-enabled devices to enable virtual assistance in products. The solution can be used to enable voice commands in home devices, such as smart speakers, thermostats, smart light bulbs and smart TVs, Conexant says.