I can’t connect my beats pill

What happens when you try? Error message(s)? Have you used the steps below to try to pair the Beats Pill?

Pair Beats Pill+ with an iPhone, iPad, iPod touch, or Apple Watch:

1. Make sure that your Beats Pill+ is charged and turned on. 
2. The "b" button  pulses to indicate that the Beats Pill+ is in discovery mode, ready to be paired. If it doesn't pulse, hold down the "b" button  for 3 seconds to enter discovery mode.
3. On your iPhone, iPad, iPod touch, or Apple Watch, go to Settings > Bluetooth. Make sure that Bluetooth is turned on. 
4. Select your Beats Pill+ from the list of Bluetooth devices. If you renamed your speaker using Beats Updater or the Beats Pill+ app, that name appears in the list.

The steps are from the Related Article at the top of your post.