The Mi-Si Acoustic Trio is Piezo style rechargeable active ukulele pickup system. This pickup system is exclusively for Kamaka concert or tenor ukuleles, and it is installed by Kamaka factory.
The volume control and tone control pod sit inside sound hole.
It can be driven for 8 hours with a charge of only 1 minute.
The price includes the installation fee for the ukulele.
It will take a couple days ~ one week to install.