24ENGLISHJABRA PRO 920Battery 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.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.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-9 for handset, RJ-9 for phone body (or headset port), RJ-45 for AUX (for Jabra Link or GN1000 handset 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.