Astro 320 and DC40 Owner’s Manual 57Device InformationSpecificationsAstroWaterresistanceWater resistant toIEC 60529 IPX7Battery type Two 1.5 volt AAbatteries (alkaline,NiMH, or lithium)Alkalinebattery lifeUp to 15 hours,typical usageNiMH orlithiumbattery lifeUp to 20 hours,typical usageOperatingtemperaturerangeFrom -4°F to 158°F(from -20°C to 70°C)See batteryinformation onpage 58.ComputerinterfaceUSB 2.0 full speedWirelessrange12 inches (30.5 cm)or closerDC 40WaterresistanceWater resistant toIEC 60529 IPX7Battery type Internalrechargeablelithium-ion batteryBattery life From 17 to 48 hours.Recharging takesapproximately 4½hours.OperatingtemperaturerangeFrom -4°F to 140°F(from -20°C to 60°C)ChargingtemperaturerangeFrom 32°F to 113°F(from 0°C to 45°C)
