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.