Loudspeaker. RoHS: yes. Component family: loud speaker. Manufacturer's product group: LSM. Configuration: unipolar. Outside diameter [mm]: 40x28.3mm. External thickness [mm]: 11.5mm. Impedance [Ohm]: 8 Ohms. Nominal power [W]: 2W. Frequency limit, upper: 20kHz. Operating temperature range min (°C): -20°C. Operating temperature range max (°C): +60°C