GrandStream BT200, BT201, GXV3000 & GXP-2000 IP Phones Software Version 1.0 or higher with 2.5mm Headset. The Jabra is a stylish, lightweight, in-the-ear headset with built-in miniature microphone for optimal voice pick-up specifically designed for use with cordless and smartphones with 2.5mm Audio port.
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