Logitech Zone 300 Wireless Headset Off White ap manual 172.08 The smooth writing surface is With additional receivers The smooth writing surface is perfect for notations and the magnetic dots quickly identify who is in the office and who is not The RK12WALLOA is backed by a StarTech 3 Operating distance Up to 30m Microphone Type Dual beamforming mics with noise canceling algorithms Frequency Response 100 7KHz Speakers Frequency response (music mode) 50 20KHz Frequency response (talk mode) 100 7KHz Sensitivity 96dB ±3dB @1kHz Driver size 30 mm Audio compliance EN 50332 2 compliant Battery Built in battery Lithium ion Battery life (talk time) Up to 16 hours Battery life (listening time) Up to 20 hours Charging Full Charge 2 hrs Quick charge 5 minutes for up to 1 hour of talk time USB C charging cable 1m Wireless Connectivity Headset Bluetooth version 5