CDS-15158-SMT-TR is a compact surface mount speaker engineered for reflow soldering and integration into space-constrained electronic devices. The speaker features an 8 O nominal impedance, 0.3 W typical input power with a maximum rating of 0.5 W, and a resonant frequency of 850 Hz (ranging from 680 Hz to 1,020 Hz). It delivers a sound pressure level of 87 dB typical at 0.3 W measured at 0.1 m, with frequency response extending from its resonant frequency to 20 kHz and total harmonic distortion not exceeding 5% at 2.0 kHz. The device measures 15 × 15 × 5.0 mm with a PET cone and Sm,Co magnet (8.0 × 1.0 mm), operates across -40°C to +85°C, and is RoHS compliant and washable. This speaker is ideal for portable consumer electronics, IoT devices, notification systems, and applications requiring compact, reliable audio output with minimal power consumption.