Dr. Bai graduated from the The Fourth Military Med Univ, Xian City, Shaanxi, China in 1984. He works in Tracy, CA and 1 other location and specializes in Pain Management. Dr. Bai is affiliated with Doctors Hospital Of Manteca and Sutter Tracy Community Hospital.
Answer Wiki. The Amazon Echo and Amazon Echo Dot are stationary devices (they need to be plugged in). The difference between them is that the Amazon Echo has a much better speaker built in, while the Dot is intended for use with an external speaker via line out/Bluetooth. The Dot is much smaller and cheaper so if you want Alexa in multiple locations, it's the best option.
The Amazon Dot Is More Than a Small Echo. A few weeks ago Amazon excited the tech press by announcing two new devices that are a cross between Apple's Siri voice-controlled assistant and an Internet-connected speaker. Both will join the Amazon Echo in working with its Alexa Voice Service, the brains behind Amazon's speech recognition.