Speakers: Far End Gear XDU Stereo-to-mono Noise Isolating Earphone with Fabric Wrapped Cord - Far End Gear

BISS: Egghead Switchable Stereo/Mono Classroom Headphones, Black, EGG-IAG-1003-SO - Egghead

Speakers: Single Earbud Stereo-to-Mono Headphone w/Mic (Black/Silver), Aluminum with Rubberized Ribbon Cable - Sharktooth Brands

CE: Far End Gear Short Buds 15" Cord Single In-Ear Stereo-to-Mono Earbud for clip-on music players - Far End Gear

Speakers: Pyle-Pro PCBL43FT6 12 Gauge, 6 feet, 3.5mm Male Stereo to Dual 1/4-Inch Male Mono Y-Cable Adapter - Sound Around

CE: Califone 3068AV Switchable Stereo/Mono Headphones 12-Pack Bundle - Califone International

Speakers: Monoprice Metal 6.35mm (1/4 Inch) Mono Plug to 3.5mm Stereo Jack Adaptor - Gold Plated - Monoprice Inc.

Speakers: XDU Pathfinder Single Stereo-to-mono Noise Isolating Earphone, Reinforced Cord - Far End Gear

CE: bseBuds 100m Noise Isolating Single Ear-In-Ear Earphone - bseBuds

Wireless: Josi Minea x 2 Pcs 2.5mm Male to 3.5mm Female Premium Audio Adapter Converter Headphone Earphone Headset with 3 Ring Jack - Stereo or Mono [ 2 Pack ] - Josi Minea

Wireless: Josi Minea 2.5mm Male to 3.5mm Female Audio Adapter Premium Quality Converter Headphone Earphone Headset 3 Ring Jack - Stereo or Mono - Josi Minea

Wireless: Josi Minea x3 Pcs 3.5mm Male to 2.5mm Female Headphone Audio Adapter Jack Stereo or Mono for Apple iPhone 6/6S/6 Plus/5S/5C iPad Samsung Galaxy S7/S6/S5 Note 5/4 & most Smartphones & Tablets [3 Pack] - Josi Minea

Wireless: Josi Minea x 5 Pcs 2.5mm Male to 3.5mm Female Audio Adapter Premium Quality Converter Headphone Earphone Headset 3 Ring Jack - Stereo or Mono [ 5 Pack ] - Josi Minea

Speakers: RiteAV - 3.5mm Male to RCA Stereo Female Adapter Cable (Y-Cable) - 6 inch - RiteAV

Wireless: Anti-Radiation FBI Agent Popular Mono Earphones,3.5mm Stereo Acoustic Hollow Air Tube Wired Earpiece Earbuds,Hands-free Headset with Mic and On Off Answer Switch - Foerteng

Speakers: eBoot Mono Jack Adapter 3.5 mm (1/ 8 Inch) Male to 6.35 mm (1/ 4 Inch) Female Audio Converter Adaptor, 5 Pieces - eBoot

Speakers: CALIFONE INTERNATIONAL SWITCHABLE STEREO/MONO HEADPHONES (Set of 6) - Califone

Speakers: LyxPro STP10 Compact 4 Channel Headphone Amplifier 1/4" and 3.5mm (Mini 1/8") Stereo Mono & RCA Inputs, Clean Amplifier Circuit, Power On LED, for Home & Studio - LyxPro

Speakers: UCEC 3.5mm Mono Plug - Male to Female (Dual Ports) - Gold Plated - UCEC

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