Russiske GSSH-01 er vel stor nok?
Finnes på Ebay
Headphones are included in the kit of military equipment 6B38.
Headset GSSH-01 with dynamic compensation ambient noise level up to 115dB (noise reduction device) is designed to protect your hearing against acoustic shock (gunshots, exalosions, etc.).
In practice, due to the built-in microphones, amplifies quiet sounds that can not catch the human ear without special equipment, cutting loud (like a shot).
Headset GSSH-01 has two speakers plug with built-in microphones, soft adjustable headband.
Limitation and locking of the noise signal exceeding 115 dB
Weight no more than 300 grams.
Time Continuous operation of the power supply AAA not less than 72 hours
Voltage Power of element AAA 1.0 1.5 V.
Operating frequency range from 200 Hz to 4000 Hz
Made in Russia, company - JSC "Luch"
Har ikke prøvd dem, men prisen er fin og det er gratis frakt!