Rectangular Speaker 8 Ohm 650 Hz 2W Nominal 94dB Specifications Dimensions: 36 mm diameter x 5.5 mm thick (1.417" x 0.217") Input power: 2 W (nom.) / 3 W (max.) Cone: Paper Element size: 16mm x 23.5mm x 17.5mm thick Impedance: 8 ohms Output: 98 dB Frequency range: 550 - 8,000 Hz Solder tab Frame mount