This is a magnetic soundhole pickup from Skysonic. It is new and unused, but has been opened. From the manufacturer's website: The T-902 is characterized by its high and mid-range frequencies, and has a character that won't get lost in a band, like a piezo pickup. It is also manufactured with advanced technology that produces no noise in any venue. It has a high output and can be used without a preamp. You can create a variety of sounds depending on the direction of the microphone. For example, if you point the microphone towards the backboard and towards the guitarist's right elbow, you can create a deep sound. The T-902 has a sound character that shines in live performances, but if you want a more natural sound during recording, you can create a more natural sound by cutting 1 kHz with an EQ. Thank you for viewing.