Jabra Biz 2300 QD Duo Headset with GN 1200 Universal Coiled Smart Cord for Connecting Headset & Telephone BlueParrott Headsets 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 and a compatible wireless headset

THE REPLACEMENT IS THE JABRA EVOLVE2 75 UC BLUETOOTH HEADSET

Use with DA90 USB Connector

it fits perfectly

Jabra Biz 2300 QD Duo Headset with GN 1200 Universal Coiled Smart Cord for Connecting Headset & Telephone BlueParrott Headsets Supports Yealink SIP-T27G/T29G/T27P/T40P/T41P/T41S/T42S/T42G/T42S/T43W/T46G/T46S/T48G/T48S/T53/T53W/T54W/T57W/T58A/VP59 IP PhonesOver the Head Headset with Stereo Earpiece & Designed With the Agent in Focus Noise Canceling & Breath Resistant Microphone Flexible, 360 Swivel, Unbreakable Boom Arm & Highly Durable Kevlar Cord HD Voice Wideband Speaker Performance & Adapts to Any IT Setup Standard GN Quick Disconnect Plug to Headset with Simple 8 Position Slide Adjustment & Built in Low Current Microphone Amplifier Product # 2309 820 105 (Headset) Product # 88011 99 (Coiled Cord)