PUI Audio SMS-2030MS Heat-Resistant Surface-Mount Speaker offers a 0.5W input power rating, 760Hz to 10,000Hz frequency range, and 30Ω impedance rating. The SMS-2030MS speaker features an extended operating temperature range of -40°C to +105°C and a storage temperature maximum up of +120°C. The extended temperature range of the PUI Audio SMS-2030MS speaker makes it suitable for harsh and hazardous environments and applications that need products to withstand very high temperatures.