Whenever a for Pokemon is nearby, an LED with flash and the device will mildly vibrate. You can then check out which for Pokemon it is by looking on your phone and using the app.
Or when the LED flashes and the device vibrates, you can press the button to throw a for Pokeball. You will then get another notification if you caught it.
Collect for Poke Balls,for Berries, and for Pokemon Eggs without having to look at your smart phone
Players wear pokemon go plus in their hands. If there are elves or pets nearby, the LED lights of the bracelet will flash or vibrate to enhance the player. However, there are three kinds of lights, green light and red light. Lanterns, different lights have different effects!
Green light: close to the elf
Red light: Failed to capture the sprite
Lantern: Capture success