The CUI Devices part CSS-J4D20-SMT-TR is a compact and versatile magnetic audio transducer buzzer with a short description of 8.5 mm, 3.6 V, and 90 dB. Its surface mount (SMT) design allows for easy integration into electronic devices and circuit boards. With its reliable and efficient functionality, this buzzer is ideal for applications requiring audible notifications or alerts. The CSS-J4D20-SMT-TR provides clear and distinct sounds, ensuring effective communication in various industrial and consumer electronic applications.