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IHOS WIS

Product code:L007860
Wireless intercom system, weather proof, frequency 860-870 MHz,16 Preset frequency channels, max 6 full-duplex speakers, PTT microphone, unlimited listeners, transmit distance: 500m in an open area, standby time over 40 hours, working time over 20 hours, transmitted Power 22dBm, receive sensitivity better than -110dBm, rechargeable Li-on battery included, Type-C for charging, belt clip, compact size and lightweight.
TEXT_PRODUCT_DESCRIPTION
Range and Signal Performance

  • Distance: The 500m (open area) range is solid for this frequency. Because 860-870 MHz has a longer wavelength than 2.4GHz (Wi-Fi based) systems, it handles obstacles like walls and foliage much better.
  • Sensitivity (-110dBm): This is a very "sensitive ear" for a radio. It means the device can pick up and decode very faint signals, which helps maintain audio clarity even when you approach that 500m limit.
  • Transmit Power (22dBm): This equates to roughly 158mW, which is quite punchy for a belt-pack unit, ensuring your voice gets through clearly.

  • Full-Duplex (6 Speakers): This is the "conference call" mode. Up to 6 people can talk and hear each other simultaneously without pressing buttons.
  • PTT (Push-to-Talk): Even in full-duplex systems, the PTT microphone allows users to "cut in" or allows the "Unlimited Listeners" to chime in when necessary.
  • Unlimited Listeners: This makes it perfect for film crews, construction sites, or event security where a small "core team" manages operations while a larger group monitors the instructions.

  • Working Time (20+ Hours): This is exceptionally high for a full-duplex system. Most standard headsets tap out at 10–12 hours. A 20-hour runtime means you can clear a double-shift or a multi-day event without needing a midday recharge.
  • Standby Time (40+ Hours): If the team is on a break or the units are left on between sessions, they won't go dead by the time you pick them up again.
  • Rechargeable Li-ion: Lithium-ion is the gold standard here—no "memory effect" (meaning you don't have to fully deplete it before charging) and a high power-to-weight ratio.
  • Type-C Charging: This is a huge convenience factor. You can charge these using the same cables and wall bricks as most modern phones, or even plug them into a laptop or a portable power bank while in the field.

  • Belt Clip: Included as standard, allowing for hands-free operation. Since it’s a PTT (Push-to-Talk) mic system, having it securely clipped to a belt or vest is essential for active environments like construction or stage management.
  • Compact Size: Designed to be unobtrusive. In intercom terms, "compact" usually means it won't snag on equipment or feel like a brick hanging off your hip.
  • Lightweight: Crucial for "all-day" wearability. A heavy radio leads to "belt sag" and fatigue over a 20-hour shift; a lightweight build ensures you almost forget you're wearing it.
  • Weatherproof: This is the "peace of mind" spec. Whether it’s sudden rain on a film set or dust on a job site, the internal electronics are sealed against the elements, ensuring the $22text{dBm}$ signal remains stable regardless of the environment.
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  • Live Events/Production: A director and camera ops in full-duplex, while stagehands and loaders listen in.
  • Industrial/Construction: Weatherproofing makes it ideal for crane operations or site management where hands-free communication is a safety requirement.
  • Sports Coaching: Coaches can speak to each other in real-time while players or assistants listen to the tactical feed.

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