b'Clockaudio -Headphones 51AH 3000 HS 1000 Seriesactive protectioncommunications headset with stereo headphones dynamic or condenser microphoneDesigned as ear defenders for protection against hazardousThe HS1000 is a ruggedly built headset with a choice of noises with the ability to set essential listening levels to eachdynamic or condenser microphone, designed for a wide range ear to hear normally. Suitable for use in a wide range of noisyof applications such as theatres, concert halls and studios. environments including industrial and building locations,The earpieces effectively reduce high surrounding noise and transport termini and sports and leisure locations. equally contain the received sounds when working in quiet environments.Defender system maintainsWide band headphones preset listening level Robust boom assemblyWide bandwidth for naturalComfortable padded ear cups givingsound to the ear high ambient noise attenuationIndividual listening levelFinished in cobalt blue Nexteladjustment for each ear with black trimBatteries operate for up to50 hours from full chargeInternal batteriescharger suppliedFinished in cobalt blueNextel with black trim Models:H 1000Ear Defender HeadphonesModels: HS 1000DEar Defender talk-back withDynamic MicrophoneAH 3000 HS 1000EEar Defender talk-back withCondenser MicrophoneIncludes W 2 windshieldModel:AH 3000HeadphonesMicro dynamic Model:HS 1000DHS 1000EDesignCircumaural MicrophoneDynamicCondenser (back electret)Frequency Response20Hz ~ 18KHz Polar PatternNoise cancellingNoise cancellingSensitivity104dB 3dB @1KHz Frequency Range150Hz ~ 10KHz100Hz ~ 10KHzEar Cup Attenuation29dB Impedance300W1.6KWMicrophone Condenser (back electret) Powering1.5 ~ 9v DC through series resistorPowering3.6v 70mAH Ni-MH rechargeable batteries Cable Length2m2mWeight0.42kg Weight0.5kg0.5kg'