Microsoft Certified Teams Premier DECT Wireless Headset DECT Headset:, Binaural Ear (dual ear) over-the-head Headset, Busylight on headset, Leather Ear Cushions, Yealink Acoustic Shield Technology DECT Base: Microsoft Teams Button, Input ports: 1x USB 3.0 Port, 2x Bluetooth, 4 inch touch Screen, Speakerphone, 2-ports USB Hub, Power Adpater, Support Yealink Wireless Charger WHC60(Optional), 2.5mm jack for Busylight BLT60(Optional)