The Big Shot Internal is an internal-mount piezo pickup, and can be a good option for larger ukes. It has a longer cable than the Big Island Spot.
The pickup head is attached with a special double-side adhesive film, which is UV resistant to ensure safe adhesion even after years of use. It is ultra-thin and enables the harmonic frequencies to completely pass through to the pickup disk.
The frequency range is nearly linear with a slight peak in the upper midrange. This allows for great upfront sound transmission.