HP Poly CA22CD Wireless PTT Replacement Battery 8K6Q8AA#AC3 - DISCONTINUED SHG PTT CORDS Supports Yealink SIP-T27G/T29G/T27P/T40P/T41P/T41S/T42S/T42G/T42S/T43W/T46G/T46S/T48G/T48S/T53/T53W/T54W/T57W/T58A/VP59 IP Phones

Supports Yealink SIP-T27G/T29G/T27P/T40P/T41P/T41S/T42S/T42G/T42S/T43W/T46G/T46S/T48G/T48S/T53/T53W/T54W/T57W/T58A/VP59 IP Phones

WILL NOT WORK with straight corded USB Headsets

even if you’re in busy surroundings

Use to connect your Yealink corded headsets into Yealink phones

Plantronics / Poly Compatible Quick Disconnect

HP Poly CA22CD Wireless PTT Replacement Battery 8K6Q8AA#AC3 - DISCONTINUED SHG PTT CORDS Supports Yealink SIP-T27G/T29G/T27P/T40P/T41P/T41S/T42S/T42G/T42S/T43W/T46G/T46S/T48G/T48S/T53/T53W/T54W/T57W/T58A/VP59 IP PhonesPOLY CA22CD Wireless Spare Battery (218401 01): Replacement Battery CA22CD Single Channel & Dual Channel OLD Plantronics Part #: 218401 01 Up to 10 hours of continuous talk time. Poly CA22CD Replacement Battery 218401 01. Compatible with Poly CA22CD SC 217100 01 and Poly CA22CD DC. TECH TIP: Battery packs with 4 contacts are only compatible with CA22CD models. (Battery packs with 2 contacts are only compatible with CA12CD models.) These will NOT work