Jabra Link Headset Adapter - 3 ft, Plug and Play, for Jabra GN9120, GN9350; Polycom SoundPoint IP 320, IP 330, IP 430, IP 550, IP 560, IP 650 - 14201-17 at TigerDirect.com
3.7v Battery For Jabra Gn9120 Gn9125 Headset Li-ion Lithium Rechargeable Accumulator Replacement 2901-249 14151-01 26-02180 - Digital Batteries - AliExpress