SpecificationsDimensions, (L, W, H) and Weight:Single/Dual Base Station 5.19” (13.18 cm) x 3.25” (8.25 cm) x 1.0” (2.54 cm), 0.325 lbs (0.147 kg)Single/Dual Charger Base 4.6” (11.75 cm) x 3.125” (7.9 cm) x 1.0” (2.54 cm), 0.325 lbs (0.147 kgWireless Microphones Wearable: 0.9” (2.3 cm) x 0.8” (2.0 cm) x 2.6” (6.6 cm), 0.05 lb (0.02 kg)TableTop: 1.5” (3.8 cm) x 0.8” (2.0 cm) x 3.3” (8.4 cm), 0.05 lb (0.02 kg)XLR Adapter: 0.9” (2.3 cm) x 0.8” (2.0 cm) x 4.0” (10.2 cm), 0.05 lb (0.02 kg)Countryman Adapter: 1.5” (3.8 cm) x 0.8” (2.0 cm) x 3.3” (8.4 cm), 0.05 lb (0.02 kg)Shipping Weight 2.0 lbs (5.45 kg)Radio Frequency:02-HDSGL 1.92 to 1.93 GHz (UPCS North America)(and other 02-HD* products)04-HDSGLEU 1.88 to 1.90 GHz (DECT EU)(and other *EU products)04-HDSGLUCN 1.90 to 1.92 GHz(and other *CN products)Maximum Output 15.7dBm 37.15mWChannel spacing: 1.728 MHzModulation: GFSKClass: ISMConnectors:Base Station Audio 3.5mm Balanced (2 In & 2 Out)Firmware Port Mini-USBCharger Base DC power input port, Proprietary 4 pin microphone charge jacksMicrophone Proprietary 4 pin charge plugs, 2.5mm mono earplug port (16 ohm)Power Requirements:Base Station 5V DC, 1 Amp (switching power supply varies by country)Charger Base 5V DC, 2 Amps (switching power supply varies by country)Range: 150’ (46 meters) approx. (Actual range depends on RF signal absorption,reflection, and interference.)Battery: Lithium Polymer, Up to 8 hours approx. talk timeCharge Time: 2 hours approx.Audio Bandwidth: 50-14,000 HzSecurity: 128-bit DSAA (DECT Standard Authentication Algorithm) authentication, 64 bit DECTStandard CipherIncluded Accessories: 1 Earpiece with inline volume control and 1 Lanyard per Wearable MicrophoneEnvironmental Requirements:Temperature 40° to 105° F (5° to 40° C) operatingHumidity 20% to 85%26