Here is an app-enabled shaker that helps you mix drinks like a pro. The B4RM4N Smart Shaker is very simple to use. You just have to connect it to your smartphone via Bluetooth to get started. The companion app has over 110 recipes for you to choose from. You just have to follow the instructions and pay attention to the LED bar on the device to pour your ingredients. Once done, just shake your drink, and you are set.
The B4RM4N Smart Shaker tells you what ingredients you need, how much ice you need to add, how long you need to shake your drink, and more. This 3 piece cocktail shaker is on Kickstarter right now.