Type: Headset Specifications: Operating temp.: 10° C/40° C Storage temp.: 0° C/40° C Headset weight: 26 g Base weight: 255 g 1.8 GHz DECT 63 mW transmission power Features: Truly wireless headset Up to 120 metres office range Extensive 9 hour talk time Standby-time: 43 hours with power on base, 120 hours without power on base 3 hours battery recharging time Battery status indicator Noise-cancelling microphone 200 Hz - 3.5 kHz audio bandwith Mute function Volume control 2 wearing styles: On-the-ear (ear hook), Over-the-head (headband) Outstanding connectivity Remote call answering/ending PeakStop technology – max 118 dB SPL (RMS) Digital security encryption Technology: 1.8 GHz DECT, 63 mW transmission power