sound and flash grenade

stun grenade / flash grenade / flashbang / thunderflash / sound bomb

sound-flash grenade

AP [anti-personnel] grenade pouch / frag [fragmentation] grenade pouch / HE grenade pouch

sound and flash battalion

sound ranging (artillery sound ranging)

flash and blast stun grenade

flash and blast stun grenade

sound-flash survey

flash-bang grenade

flash grenade    

flash bang distraction grenade

flash bang hand grenade

flash-crash grenade

flash to bang / flash-to-bang (time)

flash-ranging (location), flash-spotting

sonar (sound navigation and ranging)

observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)

smoke and flash defilade

clicking sound

communications by sound

high-intensity sound

sound communication

sound wave

sound-absorbent tile

artillery sound reconnaissance

supersonic speed (exceeds speed of sound / Mach 1)

sound damping

aerial sound ranging

air registration point (in sound ranging)

high-frequency sound waves

sound-proof compartment

background sound pressure level