Headset Cord Extender with Volume Control and Stereo to Mono Switch
Koss Vc20 Inline Headphone Volume Control : Target
Amazon.com: Volbox inline audio volume control attenuator 3.5mm 1/8" aux : Electronics
Headphone earbuds volume control adapter earphones 3.5mm in-line plug in cable | eBay
Personal Headset with In-Line Microphone and TRRS Plug
Amazon.com: 3.5mm Audio Switch with line Volume Controller, 3 in 1 Out 1/8" aux switcher Splitter selector Box, Mini Inline Headphone attenuator Volume Control knob -MC31 : Electronics
Califone 3064-usb Lightweight On-ear Stereo Headset With Gooseneck Microphone, Inline Volume Control, Usb Plug, Beige, Each : Target
Headset Switch w/Inline Volume Control & QD for Phone & PC Audio | Business Telecom Products
In-Line Volume Control
Replacement Gaming Headset Cable Inline Mute Volume Control with Microphone Fit for Astro A40 A10 Headsets Cord Lead Compatible with Xbox One Headphone Audio Extension Cable 3.3 Feet - Walmart.com
Aktudy Earphone in Line Volume Control Cable Male to F 3.5mm Stereo Audio Adaptor - Walmart.com
Rolls HV6 Headphone Volume Control | Location Sound
Headphone Volume Control Adaptor
VC20 Cables - Koss Stereophones
Califone 3060AV-BL Lightweight On-Ear Stereo Headphone with Inline Volume Control, 3.5mm Plug, Blue, Each