Turn on your Beats
Beats Fit Pro, Powerbeats Fit, Beats Solo Buds, Beats Studio Buds +, or Powerbeats Pro 2: When you take your earphones out of the charging case, they’re turned on and ready to use.
Beats Flex: Press and hold the power button on the right control module for one second.
Beats Solo 4: Press and hold the power button on the left earcup for one second.
Beats Studio Pro: Press and hold the system button on the right earcup for one second.
Beats Pill: Press and release the power button
on the top of the speaker.