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.
Amazon has a new Echo lineup with tiered-speaker heights that remind us of Starbucks coffee sizes (grande, venti, and trenta). Amazon makes a cylindrical, internet-connected Bluetooth speaker called Echo, which doubles as your personal, cloud-based assistant, addressed as Alexa. Now, one year after launching Echo, it is debuting two sibling speakers. The new ones are called Amazon Tap and Echo Dot. If you were to sit all three speakers next to each other, starting with the Echo and ending with the Dot, one would be tall, one would be medium, and one would be short.