AS01008MR-2-R Speaker PUI Audio AS01008MR-2-R Speaker is a small dynamic speaker and Piezo transducer. The AS01008MR-2-R Speaker shrinks the previous AS01308 Series by 25%. The speaker is designed with a metal housing with a water-resistant Mylar cone and high-strength Neodymium magnet. PUI Audio AS01008MR-2-R speaker features a 1.2kHz to 20kHz frequency range and 8Ω ±15% impedance and boasts a small diameter for space-limited applications.