Echo is one of the best examples of new technology, it is a hands-free speaker, which can be controlled with the user’s voice. This device has many wonderful features such as streaming podcast, music playback, playing audiobooks, weather information, voice interaction, setting alarms, traffic information, making to do list, last but not the least, real time information. This device also has the ability to control various smart devices. You can add an Echo device with smartphones with the help of Amazon Echo app. This wonderful device comes with a manual and voice-activated remote control. Echo requires a Wi-Fi connection to operate properly.