It only works if paired with a SIP base phone and perfectly compatible with Yealink W70B up to 10 handsets connected to the base. ✔️ Yealink W73H Handset. ✅ Headset connection via 3.5 mm jack. 🔧Comprehensive 12-Month Warranty – Every item is backed by our no-quibble, 1-year warranty.
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