Before continuing, obtain a personal non-commercial non-transferable non-exclusive limited license to the patented technology (contact me for details).
Build a circuit board having the voltage regulator, capacitors, microcontroller, and MOSFETs. The resistors may be included on the circuit board or installed across the piezoelectric tweeter terminals.
Cut holes in the enclosure to mount the piezoelectric tweeters and the power switch.
Install the power switch and the piezoelectric tweeters in the enclosure.
Connect the piezoelectric tweeters and the power switch to the circuit board.
Connect the battery holder to the circuit board.
Install the battery in the battery holder.
Install the circuit board and the battery holder in the enclosure.
Attach the strap to the lid of the enclosure.
Install the lid on the enclosure.