Conference Phones - Poly (Plantronics) - Headset with cable - Mobile phone - Bluetooth - Omnidirectional microphone (OMNI directional) - Optimalised for Microsoft Teams - 16 - 210 - 20000 - 150 - Bluetooth - Battery and USB - 2,5 / 5 m square meters - 3,0 m / 6,0 m diameter