JuicedLink Low-Noise XLR Input Preamp RM222 for DSLR/Mirrorless. It has some cosmetic wear, but is in a perfectly working condition. The preamp is powered by one 9V battery.

I'm also including a charger for Li-ion, Ni-MH and NI-CD rechargeable 9V batteries ($35), Auray DUSM-1 shockmount ($29), Cable 3.5mm Male to 3.5mm Male, XLR Female to 1/8" TRS Male Connection Cable - 15" (40cm) and XLR Male to XLR Female Professional Microphone 1' Cable.

If you need to connect XLR microphone to your DSLR or Mirrorless camera, all you need is included in this set (except for a 9v battery). JuiceLink devices were discontinued, but are still considered to be preamps w/ 3.5 output that has the best low-noise performance. RM222 originally retailed for $355.

Links -

Auray Shock Mount:

https://www.bhphotovideo.com/c/product/885660-REG/auray_dusm_1_universal_shock_mount.html

iPowerUS 9v Battery Charger:

https://www.bhphotovideo.com/c/product/501664-REG/iPower_FC9VX44K_FC_9VX44_Fast_Smart_9V.html