Amazon.com: Headphone Earpiece Jack Adapter Cable for Cordless Phones: 2.5mm Male to 3.5mm Female (for Smartphone Headphone) Cordless Phone Hands-Free Headset Adapter : Electronics
Monoprice 1/4in (6.35mm) TRS Stereo Plug to 3.5mm TRS Stereo Jack Adapter, Gold Plated - Monoprice.com
ANDTOBO 1/4'' to 3.5mm Stereo Pure Copper Headphone Adapter,3.5mm(1/8'') Plug Male to 6.35mm (1/4'') Jack Female Stereo Adapter for Headphone, Amp Adapte, Black 2-Pack
Amazon.com: Mobi Lock 3.5mm Plug to 6.35mm Socket (Pack of 2) 1/8 to 1/4 inch Stereo Audio Jack Adapter | Connects Devices with 3.5mm Port to Your Amplifiers, Guitar, Piano, Speakers &
3.5mm Mono Plug to RCA Jack Adapter
Gold Plated 3.5mm Male to 2.5mm Female Audio Headphone Adapter Headset Converter 3 Ring Jack Plug - Stereo or Mono (2-Pack) - Walmart.com
USB C to 3.5 mm Headphone Jack Adapter – iLuv Creative Technology
3.5mm 4 Pole Jack Y Splitter-Plug To 2x3.5mm 3 Pole Sockets Cable Adapter
Headset adapter with headphone/mic plugs - Audio Cables and Adapters | StarTech.com
Buy USB-C to 3.5 mm Headphone Jack Adapter - Apple