Headset Buddy Mic-Line Plus - Line-Level Audio + Monitoring Adapter for iPhone & Smartphones
Amazon.com: Headset Buddy Line-Level Input Audio Plus Headphone Monitoring with Built in Attenuator Adapter for iPhone, Smartphones (Mic-Line Plus) : Electronics
Agent Buddy Training Switch Adapter | Side by Side Dual RJ9 Headset Splitter Cable
Amazon.com: Headset Buddy PC Dual 3.5mm Headset to RJ9/RJ10/RJ22 Phone Adapter (PC35-RJ9A) : Electronics
Amazon.com: Headset Buddy Line-Level Audio Adapter with Built in Attenuation for iPhone, Smartphones, Soundboards and Mixers (iPhone-Mic-Line) : Electronics
01-PH35-RJ9Cisco Headset Buddy Male RJ9 Plug to 3.5mm OMTP Headphone Adapter Cable - Compatible with Cisco(PH35-RJ9C)
Amazon.com : Headset Buddy Agent Buddy Side-by-Side Training Switch Y Adapter for RJ9/RJ10/RJ22 Connections (HM-RJ9) : Telephone Products And Accessories : Office Products