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Model OSWD-2 (J400) Wireless Headset

Model OSWD-2 (J400) Wireless Headset is a kind of wireless communication product, which integrates the full-duplex wireless communication, adaptive squelch, digital modulation, with laryngophone It has great security communication performance. Comfortable for wearing.Besides, it can communicate under the high noise environment of more than 120dB.
More Info
Main Technical Specifications:
  Operation frequency band: ISM frequency band (431MHz~437MHz)
  Transmitting power≥10dBm
  Channel interval: 400 KHz
  Channel number: 10
  Power supply: DC 3V (special battery lithium or 2 pieces of 5# alkaline batteries)
  Standby current≤40mA
  Communication distance: 250m (in the open air)
  Sound insulation amount≥24dB
  Earphone output≥85dB
  Transmitting input≥5.5mV/3.16m/s2
  Transmitting anti-noise≥15dB
  Continuous working time≥15h
  Operation temperature: -40℃~+55℃ 
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