Beeps sound

Use Dshot beacon (use motors to sound beeps when disarmed)

sound ranging (artillery sound ranging)

Beeps SOS when armed and TX is turned off or signal lost

Beeps when gyro has been calibrated

Beeps when TX is turned off or signal lost

Disable all beeps.

initialisation beeps when board is powered on

Longer warning beeps when battery is critically low (repeats)

Setting volume of the startup beeps too high might damage the motors

The volume of the startup beeps

This sets if the TX only beeps one-time versus playing a startup song

use the number of beeps to

Warning beeps when battery is getting low (repeats)

Warning beeps when board is armed with motors off when idle (repeats until board is disarmed or throttle is increased)

clicking sound

communications by sound

high-intensity sound

sonar (sound navigation and ranging)

sound communication

sound wave

sound-absorbent tile

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

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

overall sound pressure level

adjusted slope of sound pressure level