Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, two-way radios, megaphones, radio and television broadcasting, and in computers for recording voice, speech recognition, VoIP, and for non-acoustic purposes such as ultrasonic checking or knock sensors.
volume controllers provide a solution for remote volume control. They can be installed in the wall of appointed rooms. Some volume controllers are equipped with program selecting function. All of DSPPA volume controllers can be extended to 30W, 60W, 120W & 200W capacities.
