Digital PowerMax DA4000 3W Dual Band Cellular Amplifier Power - Output (Watts) 3W (824-849 MHz), 2W (1850-1910 MHz); DB Gain (dB) NONE; Bands Amplified NONE; Coverage (Square Feet) NONE 2W (1850-1910 MHz) Voltage - Input Range (Volts) NONE Wireless NONE Power - Output (Watts) 3W (824-849 MHz)