Audioroot Femto - Battery powered stereo mic preamp with 48V phantom power - Nordic Pro Audio ApS
Sound Devices MM-1 Mic Preamp - Rule Boston Camera
Amazon.com: Nicama XLR Female to 3.5mm TRS and TRRS Adapter with Phantom Power for Shotgun or Condenser Microphones, V2 Mic Preamp for iPad DSLR Camera : Musical Instruments
Sescom IL-MICPRE Active Inline XLR Microphone Preamplifier with Power Switch & Adapter
Sound Devices MM-1 Single Channel Portable Microphone Preamp
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
TC Electronic Helicon GO VOCAL High-Quality Microphone Preamp for Mobile Devices 000-DP600-00010