A microphone translates a sound wave into an electrical impulse, and a speaker translates an electrical impulse into a sound wave.
loudhailer
Microphone, telephone, bull horn, megaphone.
If you mean the megaphone, you can get it on the arch near Tim on the left hand side.
What_is_difference_between_microphone_and_voice_input
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The main difference between a cardioid and a supercardioid microphone pattern is the directionality of sound pickup. A cardioid microphone picks up sound mainly from the front and slightly from the sides, while a supercardioid microphone is more directional and picks up sound primarily from the front with a narrower pickup angle.
Sundial. A megaphone amplifies sound, while a microphone captures sound. Similarly, an hourglass measures time passing through the flow of sand, while a sundial measures time through the position of the sun's shadow. Both pairs involve tools that serve different functions within the same category.
A megaphone usually known as (speaking-trumpet, bullhorn, blowhorn, or loud hailer) is a portable, usually hand-held, cone-shaped acoustic horn used to amplify a person's voice or other sounds and direct it in a given direction. The sound is introduced into the narrow end of the megaphone, by holding it up to the face and speaking into it, and the sound waves radiate out the wide end. The megaphone increases the volume of sound by increasing the acoustic impedance seen by the vocal cords, matching the impedance of the vocal cords to the air, so that more sound power is radiated. It also serves to direct the sound waves in the direction the horn is pointing
that the 4g is a bit thinner, have built-in microphone and cameras
Megaphone is a noun.
Between microphone and microphone preamplifier
I'll forego the megaphone. Your megaphone could use a fresh coat of paint.