红外线无线麦克风系统（ks868)

Infrared wireless microphone system(ks868)1.Infrared light transmit signal,High Security,Interference Resistence and Against String Frequency IR is short-range, cannot penetrate walls, and is line-of-sight.which solve the string problems between the classrooms. It can realize that many sets of equipments used in many rooms simultaneously, safe and good isolation. 2.Emitter can be equiped with any receiver,Operate Conveniently We can use the same frequency do in the different rooms,beacause of no string frequency in the isolated room.So teachers can use the same microphone in the different rooms ,which is conveniet schools and teachers to manage and use greatly. Functions: *International IEA standard 19-inch 2U high level aluminum alloy casing, which can be equiped with the muti-media facilities. *Along with audio input, audio output all the way, a group of wired microphone input, master volume and high-bass independent adjustable, with digital reverb function *Can be extended to apply to two or four external receiver to enhance the reception or upgrade to a dual-frequency machine The standard KS-868 ,the received area is 200 sq.meters,outfitted two speakers, the max power is 100W. The enhanced KS-868,the received area is 400 sq.meters,outfitted four speakers, the max power is 200W. Specifications: Speaker Weight:2.7KG *Speaker Installation:wall-mounted *Reception Angle:360 degrees *Infrared Wavelength:850nm *Audio input interface:RCA-2 *Audio output interface:RCA-2 Host Machine Weight6KGFrequency Range50Hz 20KHzOutpower50WRated Speaker Impedance8ΩPower Requirements220VAC 50HzReception sensitivily:≥85dBSignal-to-noise :80Db≥80DbIR Receive Frequency:2MHz (encryption)Wired microphone interface:one 6.35 phone jacks483mm*240mm*88mm Standard AssemblesThe multi-media amplifier host machine 1set KS-HG 1sets Passive speaker 2sets Out-fitted receiver 1set Enhanced AssemblesThe multi-media amplifier host machine 1set KS-HG 1sets Passive speaker 4sets Out-fitted receiver 2sets Chest transmitter linked