![Sennheiser Battery power supply, powers one 12 volt AB (T-powered) microphone. Battery life approximately 30 hours using a 9 volt alkaline battery. Battery test, attenuation (0, -10, -20 dB) and low frequency rolloff (20, 80, 140 Hz) controls (19.0 o Sennheiser Battery power supply, powers one 12 volt AB (T-powered) microphone. Battery life approximately 30 hours using a 9 volt alkaline battery. Battery test, attenuation (0, -10, -20 dB) and low frequency rolloff (20, 80, 140 Hz) controls (19.0 o](https://cdn11.bigcommerce.com/s-z5jig/images/stencil/350x350/products/4453/31157/MZA14-P48U__77084.1541609416.jpg?c=2)
Sennheiser Battery power supply, powers one 12 volt AB (T-powered) microphone. Battery life approximately 30 hours using a 9 volt alkaline battery. Battery test, attenuation (0, -10, -20 dB) and low frequency rolloff (20, 80, 140 Hz) controls (19.0 o
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Amazon.com: Xvive P1 Phantom Power Supply 48V/12V Switch,Up to 40 Hours of Use,Rechargeable Portable Phantom Power for Condenser/Shotgun Microphones, Mic Preamp, Recording Studios : Musical Instruments
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Original Alctron PS200 48V Phantom Power Supply for condenser microphone both by 9V battery and 9V adapter - AliExpress
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