SENNHEISER | Sennheiser IMPACT D10 Phone Mono Wireless Headset, DECT, upto 12 Hours Talk time, Noise cancelling Microphone, Fast Charge,

D10 Phone ÔÇô DECT Wireless headset with base station for phone only Technical Data Frequency response (Microphone) Wideband: 150 Hz ÔÇô 6.8 KHz Frequency response (Microphone) Narrowband: 300 Hz ÔÇô 3.5 KHz Frequency response (Headphones) Wideband: 150 Hz ÔÇô 6.8 KHz Frequency response (Headphones) Narrowband: 300 Hz ÔÇô 3.5 KHz Weight ear hook version: 22 g / 0.78 oz Weight headband version: 50 g /1.76 oz Earpad size ?© 50 mm / 1.96 in Charging time 0 - 50: 20 minutes Charging time 0 - 100: 1 hour Standby time Up to 100 Hours Range line of sight: 180 m / 590 ft Range in typical office building: 55 m / 180 ft Talk time Wideband: Up to 8 hours Talk time Narrowband: Up to 12 hours Storage temperature -20 ??C to + 70 ??C (-4 ??F to +158 ??F) Operating temperature +5 ??C to + 45 ??C (+41 ??F to +113 ??F) Box Inclusion Headset,Base Station,Power supply,Audio phone cable,Headband (detachable),1 bendable ear hook (mounted on headset),Printed Quick Guide,Printed Safety Guide.