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MIRA Safety VPU-1 Respirator Voice Projection Unit

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Description

IMPORTANT NOTE: The MIRA Safety VPU-1 Respirator Voice Projection Unit is currently on pre-order, with the first batch shipping sometime in November. If you have any questions, feel free to click the chat bubble below, or email us at support@mirasafety.com. 

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The MIRA Safety VPU-1 Respirator Voice Projection Unit amplifies and projects your voice while wearing a respirator. It’s an ideal solution for professionals who need to be heard loud and clear, but who also need to wear a PPE mask on duty. Working with your existing gas mask and gas mask microphone, our VPU features a rechargeable battery and is optimized to withstand exposure to extreme temperatures, vibration, water, salt fog, and dust. 

Note: The VPU-1 packaging includes a standard 3.5mm, Nexus two prong connector jack.

Key Features of the MIRA Safety VPU-1 Respirator Voice Projection Unit

  • Included rechargeable Lithium-Ion battery
  • IP67 certified (IEC standard 60529, submersible for up to a half an hour)
  • Simple, easy-to-use interface with just three buttons
  • Delivers maximum sound pressure level of 83 dBSPL @ 1 m
  • Connects directly to MIRA Safety Gas Mask Microphone that can be mounted on your respirator’s exhalation valve
  • Robust MOLLE clip allows for easy mounting and handling
  • Volume range +24 dB to -80 dB
  • Integrated battery allows for up to 6 hours of continuous use with 2 hours of charging
  • Designed in accordance with ČSN EN 140
  • Approved according to PPE directive 89/686/EEC and EMC directive 89/336/EEC


Technical Specification

The MIRA Safety VPU-1 dramatically increases your ability to communicate while wearing a gas mask or half-face respirator.

This is a critical advantage for riot police, SWAT teams, military operators, and industry professionals who regularly wear CBRN gear. But it’s also a major asset for anyone who might have to communicate with a small group on the move without compromising their PPE.

Without a VPU, your ability to communicate can be limited by your gas mask’s speech diaphragm. A gas mask microphone helps solve that problem, but it also means that everyone in your party needs a radio (and to know how to operate it) in order to communicate.

With a VPU, you can effectively communicate over a much larger area, even in distressing or distracting situations. 

The MIRA Safety VPU-1 integrates seamlessly into your existing gear, including our Gas Mask Microphone and any compatible gas mask or respirator. It’s IP67-certified with rugged construction and a runtime of up to 6 hours. 



Technical Data

BATTERY AND CHARGING DATA
Battery Specification: 3.7 V / 1200 mAh, 4.44 Wh
Battery Charging Input: (designed for standard USB Charger)
Operating Time: (for maximum audio output level and continuous voice input)
Standard Charging Time (IIN up to 1.8 A): (from 0 % to 100 % battery capacity, depending on the charging current)
500 Times
AUDIO AND ACOUSTIC DATA
150 Ω ± 10 % (300 ÷ 3,400) Hz
3 W
Maximum Sound Pressure Level (at usual voice level): (the audio output power remains at its set level, it does not decrease with decreasing battery life)
ENVIRONMENTAL AND OTHER DATA
Black (RAL 9005) 150 g ± 10 %
Refer to Figure 2 OLLE Clip
-20°C to 60°C (-4°F to 140°F) 0°C to 45°C (32°F to 113°F)
-20°C to 45°C (-4°F to 113°F) Approved according to PPE directive 89/686/EEC and EMC directive 89/336/EEC
Designed in accordance with ČSN EN 140 IP67
Min. Level V2 1,000 Hours

USE:

The unit features a rugged MOLLE clip that can be attached to a plate carrier, belt, or other MOLLE webbing (including our MOLLE PAPR Pouch). Before mounting the VPU, perform a battery test and plug in the two-pronged cable from your gas mask microphone. Switch the unit on, select your desired volume, and mount the microphone. Note that acoustic feedback may occur if the VPU is placed too close to your gas mask microphone. To eliminate feedback, either reduce the volume or increase the distance between the VPU and the microphone. 



STORAGE

Store your MIRA Safety VPU-1 Respirator Voice Projection Unit in a cool, dry place away from direct sunlight. Ideal temperature for storage is -20 to +45°C (-4°F to 113°F). Lithium Ion batteries typically hold a charge for up to 12 months in storage. Periodic battery testing is necessary every 6 months to maintain a full charge.  



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