Filters Filters Home > Office Supplies > Technology > Splitters/Couplers Technology Splitters/Couplers Technology Items [1] Plantronics 2701903 Adapter, Y Splitter for Training Purposes (2 People Can Listen) PLN2701903 Y Splitter Headset Adapter. Allows for two tops to be connected to a single bottom for training purposes (2 people can listen). Mfg Number: PLN2701903 Manufacturer: Plantronics Price $33.80 X Add to Cart