When using phantom power, all you need is an external power supply. In my experience, plugging in a pair of Shure KSM141 mics during a session barely has enough power for 1-1/2-2 hours of session, even with the built-in battery on! That being said, they REALLY only need to sell USB to coax cables so you can use millions of rechargeable batteries for the cell phone market. I plucked up courage and used the cable with my 20,000mah battery and it worked flawlessly - a 2 hour session used almost no capacity so the battery still showed a full 4 charging bars.
๐ต Icstation DIY Light Sensor Sound Module Micro USB Music Player for Talking Greeting Card: A Creative Gift with 8M Memory and Speaker
9 Review
๐๏ธ High-Capacity 64GB Mini Voice Recorder - Telele Audio Recorder with 750 Hours Recording Capacity and 50 Hours Battery Life - Small MP3 Digital Recorder for Lectures, Interviews, Meetings, and Classes
9 Review
Premium Hard CASE for TASCAM DR-05 / DR-05X (V2/V1) Portable Digital Recorder - Featuring Mesh Pocket for Accessories by Caseling
11 Review
Zoom Q2n-4K Handy Video Recorder: Ultra High Definition 4K/30P Video, Compact Size, Stereo Microphones, Wide Angle Lens - Perfect for Music Recording, Video Production, YouTube Videos, and Live Streaming
13 Review
KEiiD Wooden Retro CD Player With Bluetooth, FM Radio, USB AUX Inputs, Speakers And Adjustable Bass/Treble For Home Stereo System And Boombox
27 Review
Experience Nostalgic Music With KEiiD CD Player Retro Home Boombox: Get The Used-Like New Version For Just $99
17 Review
Experience Ultimate Music Enjoyment with Sony CD Boombox ZSPS50B.CED - USB Playback & Audio Input Included!
13 Review
SINGING WOOD Boombox Portable Bluetooth
9 Review