Amazon.com: Battery Replacement for JABRA Pro 900, Pro 920, Pro 923, Pro 930, Pro 935 Part NO AHB5-2229PS : Health & Household
Amazon.com: MPF Products 295mAh AHB5-2229PS Battery Replacement Compatible with Jabra Pro 900, Pro 920, Pro 923, Pro 930, Pro 935 Wireless Headset : Electronics
Jabra PRO 920 Mono Wireless Headset (920-65-508-105)
Jabra Pro 920 Mono Wireless Headset - Headsets Direct