The AGE series is capable of achieving the perfect electro-acoustic sound in any style (clean, jazz, latin, funky rhythm, fusion, concert and many more). The entire series shares as basic features a 4-band graphic equalizer with which you can control bass, mid, treble and presence, in addition to volume. It also includes a low battery indicator led. Inside is the difference. They have SMD (Surface Mounted Device) technology and electromagnetic shielding, which eliminates noise, emitting a clean acoustic sound. Designed to be easily installed in the upper curve of the guitar's rim, providing quick access and easy parameter control.