Yamaha Corp. has developed a new device that reduces the volume of trumpets by more than 30 decibels—to the level of a whisper. A microphone picks up the sound, feeds it to a n amplifier, and then to headphones that allow the musician to hear the music at a normal volume. What form of product advertising is the company likely to use?

Based on the information provided within the question it seems that the form of product advertising most likely to be used is pioneering advertisement. This type refers to a campaign to promote and inform consumers about a completely new product that is going to be released. Which in this scenario it is a device that lowers the volume of instruments and feeds it through the musicians headphones. The advertisement would therefore let the consumers know about this and provide all the specs on this device such as it lowers the volume by more than 30 decibels to the level of a whisper.