Is this just a way to instantly order things from Amazon? If so, I don’t see the need to pay $130 when I already have a device that let’s me do that in my pocket while also letting me make and take phone calls.
Tap is a personal assistant from Amazon, as well as a Bluetooth speaker. The assistant portion works through wifi, and you can use it to control smart home devices, check weather, play music, adjust your calendar, check news, etc. It's a portable version similar to Amazon Echo.