HP Poly Voyager 4310 M Microsoft Teams Certified USB C Headset +BT700 dongle +Charging Stand Bluetooth___No Projector Projector brightness 6500 ANSI DMC HDO Projector Projector brightness 6500 ANSI lumens Projection technology LCD Projector native resolution WUXGA (1920x1200) Contrast ratio (typical) 3000000:1 Native aspect ratio 16:10 Screen size compatibility 1016 10160 mm (40 400") Keystone correction 3 Bluetooth profiles A2DP Frequency response (talk mode) 100 7000 Hz Frequency response (music mode) 50 20000 Hz Wireless range 30 m Headphones Maximum input power 10 mW Ear coupling Supraaural Headphone sensitivity 96 dB Driver unit 3 cm Noise canceling Yes Microphone Microphone type Boom Microphone frequency 100 7000 Hz Microphone sensitivity 38 dB MEMS (Micro Electro Mechanical System) microphone Yes Number of microphones 2 Microphone direction type Omnidirectional Microphone noise canceling Yes Folding microphone Yes Microphone mute Yes Battery Battery operated Yes Battery type Built in battery Battery technology Lithium Ion (Li Ion) Battery capacity 240 mAh Continuous audio playback time 20 h Talk time 16 h Fast charging time 5 min Fast charging Yes Charging source USB Battery recharge time 2 h Number of batteries supported 1 System requirements Windows operating systems supported Yes Mac operating systems supported Yes Windows 10 Poly Voyager 4310 M Microsoft Teams Certified USB C Headset +BT700 dongle +Charging Stand