Meet the SwingNote: a smart gadget that coaches you as you swing with audio feedback. Just screw the sensor into the top of your putter, pick the game you want to complete, and start swinging. The sensor sends real-time data to your smartphone and offers correction tips.
More gadgets like this ➡️ : here
The device connects to your iOS device via Bluetooth. You can use Apple TV with this too. More info is available on Kickstarter.
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