Pig Hog PHX14-10 1/4" TRSF to 1/4" TRSM Headphone Extension Cable, 10 Feet

Cable Matters 5-Pack 1/4 to 1/8 Headphone Adapter

Mackie Mixer Accessory, 1-ch x 4 headphones (HM-4)

Behringer Microamp HA400 Ultra-Compact 4-Channel Stereo Headphone Amplifier

Hosa YPP-118 1/4" TRS to Dual 1/4" TRSF Y Cable

TISINO 1/4 Splitter, 1/4" TRS Stereo Male to Dual 1/4" TRS Stereo Female Y Splitter Cable Quarter Inch Splitter Cord - 8 Inch / 20cm

TISINO 1/4 inch TRS Stereo to Dual 1/4 inch TS Mono Insert Cable Y-Splitter Stereo Breakout Cable Patch Cord - 6.6 feet

beyerdynamic DT 770 PRO - 250 OHM LE DT 770 Pro 250 ohm Professional Studio Headphones (Limited Black Edition)

Cable Matters 2-Pack 1/4 Inch TS to TS Electric Guitar Cable (1/4 Cable) 10 Feet