EMG 45DC 6-String Active Bass Pickup, Black Logo Color: SilverResonant Frequency (KHz): 4.3RMS Output Voltage: 1.4Peak Output Voltage: 2.0Output Noise (dBV): -115Output Impedance (Kohm): 2Current@ 9V (Microamps): 220Battery Life (Hours): 1200Maximum Supply (Volts DC): 27 Resonant Frequency (KHz): 4.3 RMS Output Voltage: 1.4 Peak Output Voltage: 2. Output Noise (dBV): -115