Poly / Plantronics Polaris Cable with Quick Disconnect to Male Modular Plug (27190-01)- Polaris cord, replacement. Quick Disconnect to male modular plug. Polaris Plantronics headset are used on phones equipped with built-in amplifiers.- Coiled cord connects any H-Series headset with Quick-Disconnect plug to compatible Plantronics amplifiers, or phones with compatible headset ports.- The Plantronics Polaris Cable with Quick Disconnect does not work with Cisco phones.Compatible with H-Series headsets when plugging into specific phones. Please check our compatible guide.Understanding Direct Connect Cables vs. AmplifiersWhen using any H-series headset, a Direct Connect Cable or amplifier is required to plug in between your headset and phone. Using a Direct Connect Cable will save you money versus an amplifier but an amplifier will provide optimum sound quality and volume controls.Direct Connect Cable- Less expensive- Easy to install into headset port- Takes up virtually no desk space- Limited to use with compatible phones only (Your future phone may not be compatible and require an amplifier)Amplifier (Plantronics M22)- Compatible with most phones- Battery or AC powered to provide optimal sound quality- Speaker volume adjustment- Microphone volume adjustment (Key point that Direct Connect Cable doesn't have)- Lifting handset each call may be required depending on your phone
