Advanced Acoustic Technology Corp. (AATC) APD-75A6 Low Power Transducer is driven by piezoelectric technology, ensuring the consumption current is low. This transducer is also robust to vibration and shock. It measures 7.5mm x 7.5mm x 2mm and is suitable for reflow soldering and automatic production. Additional features are a high-pitched reminder sound, 1V to 25V operating voltage range, 1mA maximum consumption current, and 6000Hz rated frequency. AATC APD-75A6 Low Power Transducer is ideal for medical devices, portable trackers, and smart products like bicycle locks and door locks.