25 ENGLISHJABRA PRO 920Operating temperature range:-20˚C to +60˚C.Note: The headset features a temperature-dependant charging algorithm that prevents the battery from beingcharged during extreme temperatures (below 0˚ and above 45˚C).Battery charge time:20% charge in less than 20 minutes.50% charge in less than 45 minutes.Full charge in less than 3 hours.Battery shelf life:Headset battery holds charge for 6 months in the off state, before recharge is required.Battery lifetime:Minimum 1500 charge cycles (equivalent to 2 years heavy use).9.3 MATERIALS AND ALLERGIESThe headband attachment is made of stainless steel and does not have a nickel-coated surface. Nickel releasefrom the headband is 0.02 μg/cm2/week, which is below the 0.50 μg/cm2/week limit established by EU Directive94/27/EF. The stainless steel alloy was tested for nickel release in accordance with the European standard EN1811:1998.Other wearing-style attachments are made of plastic and contain no known allergens. The ear cushions do notcontain vinyl. The products contain no nickel, chrome or natural rubber that can come into contact with users’ skin.9.4 JABRA PRO 920 BASEThe Jabra PRO 920 base meets the following specifications.Dimensions:118 mm x 76 mm x 29 mm.Wireless standard:(CAT - iq) European DECT and U.S. DECT.DECT range:For European DECT; up to 60 meters from Jabra PRO 920 base to headset.For US DECT 6.0; up to 60 meters from Jabra PRO 920 base to headset.Operating environment:-0˚C to +40˚C; Up to 95% RH non-condensing.Recharge cradle:Fits supplied Jabra PRO 900 series headset.Desk Phone connections:RJ-11 for handset, RJ-11 for phone body (or headset port), RJ-45 for AUX (for electronic hookswitch or GN1000handset lifter).Clear Dial Tone switch and microphone volume switch:Electromechanical switches. Clear dial tone switch and microphone volume level set manually.Electronic hookswitch standards:GN1000, Jabra IQ, DHSG and MSH, and other Jabra DHSG adapters. Each EHS requires additional cabling and/orequipment available separately. GN1000 is supported by default and requires no additional configuration.9.5 PRODUCT DISPOSALPlease dispose of the headset according to local regulations and recycle when possible. Do not dispose ashousehold waste. Do not dispose of the headset in a fire as the battery may explode. Batteries may also explodeif damaged.