Switchable Stereo/Mono Headphones - Web Exclusives | EAI Education
Amazon.com: 3.5mm Stereo Male to Dual 3.5mm Mono Male Audio Cable, 1ft 3.5mm 1/8" TRS Male to 2 x 3.5mm 1/8" TS Male Y Breakout Cable Splitter Adapter for Headphone, Speaker :
Classentials Deluxe Mono Auto Radio BLUETOOTH Module (6-PIN DIN) - Classentials