Handheld Transmitter

(UP:IWH-201DOWN:IWH-301)IWH-201/IWH-301 handheld transmitter featuresiE Headheld Microphone TransmitteriE Multiple emitter array of high efficiency infrared emission LEDs for optimum IR transmission.iE Two-color Power ON / Low battery LED changes color to indicate low batteries.iE 2 channels switcheable. (IWH-301)iE Neodymium unidirectional dynamic cartridge for optimum audio, minimal handling noise and maximum feedback rejection.iE Rugged steel mesh ball with anti-roll ring.iE Operates up to 12 hours with a 2.4V NiMH rechargeable battery.IWH-201/IWH-301 specificationsIWH-201IWH-301Transmission carrierInfrared RayCarrier frequency2.08MHz or 2.54MHz2.08/2.54MHz(switchable)ModulationFMPeak deviationi?25KHzIR wavelength850nmPilotone frequency32.768KHzCompander circuitYesPre-emphasis50 ?gSLocation of IR emitterBuilt-in and attached to transmitter bodyTransmission angle360XIR Power output selectionHigh (HI) / Low (LO)-Current consumptionHI about 350mALO about 180mAabout 350mARange (Line of Sight)HI about 30mLO about 20mabout 30mMicrophone usedUnidirectional DynamicBattery usedRechargeable NiMH ( 2.4V / 2100mAH) x 1Battery lifeHI output about 8 hoursLO output about 12 hoursabout 8 hoursBattery chargerHC-20, HC-3355?X x 23525