Most devices with Alexa allow users to activate the device using a wake-word (such as Alexa); other devices (such as the Amazon mobile app on iOS or Android and Amazon Dash Wand) require the user to push a button to activate Alexa's listening mode. Currently, interaction and communication with Alexa are available only in English, German, French, Italian, Spanish, Portuguese, Japanese, and Hindi. In Canada, Alexa is available in English and in French (with the Québec accent).
With Echo, you can talk to almost anyone hands-free—no tapping or searching required. Use Drop In to instantly connect to another compatible Echo at home or send an announcement across Echo devices, like calling the family for dinner or reminding the kids to go to bed. Plus, now with Skype calling stay in touch with friends and family in over 150 countries.
There are a number of ways messages can be sent from Alexa's application. Alexa can deliver messages to a recipient's Alexa application, as well as to all supported Echo devices associated with their Amazon account. Alexa can send typed messages only from Alexa's app. If one sends a message from an associated Echo device, it transmits as a voice message. Alexa cannot send attachments such as videos and photos.