- 2-pack - Convert your IP Speaker into an IP Intercom appliance. - Convert your IP Speaker into an amplifier/speaker for a secondary chain of 25V/70V of speakers. - Made of Industrial Grade Steel. - Frequency Response: 95 Hz to 20 kHz. - Power Taps: 4 2 1 0.5 0.25 Watts. - Cones: 8� Main Cone With Secondary High-Frequency Cone made of treated paper. - 70V and 25V Compatible - Bright white cover with black can