Passive mixers
https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=passive+mixer
Mark
Via the old thread https://www.part15.org/community/temp/mixers-that-do-not-need-ac-adapters-or-batteries/ I came across some current, interesting, ultra cheap mixers - I mean cheap as in $10 and $20 range and with free shipping.
The $10 one looks like a cartoon:
Brand: Generic
Mixer, Audio Interface, Game Mixer, Streaming Mixer, Bluetooth, Mute Button, Suitable for Live Broadcast, Podcast Recording, Voice
/Interface-Streaming-Bluetooth-Button%EF%BC%8CSuitable-Broadcast/dp/B0DCMYY392/
This one better at $23.99
Brand: TEYUN
3.63.6 out of 5 stars(34)
USB Audio Interface +48V Phantom Power with 3.55m Microphone Jack, Audio Interface for Recording Podcasting and Streaming Ultra-low Latency Noise Free XLR Audio Interface /TEYUN-Interface-Microphone-Recording-Podcasting/dp/B0CDFZTSBT/
Or for a dollar more $24.99
Brand: micfuns
3.53.5 out of 5 stars(4)
MT2 2 channel audio Unpower mixer with DC 48V Phantom Power 2 sets of main channel outputs (XLR balance and 6.35m)，3.5mm Stereo in, Headphone Jack for studio live show,party recording
/Micfuns-MT2-channel-Headphone-recording/dp/B0CL2BHM42/
