Introduction
Thank you for purchasing the product.
Before using the product, read through this user manual to ensure that you will use the product correctly. Also, keep this
manual handy for easy reference when needed.
The product uses proprietary active noise-cancelling technology to provide a comfortable listening
environment in areas with high ambient noise. The product features a miniature microphone in each earpiece
that pick up ambient noise (such as traffic, air-handling systems, etc.) and create a sound-cancelling signal to
effectively block the noise.
• The noise-cancelling function of the product mainly operates to reduce noise at 300 Hz or lower, which means it has
almost no effect on noise that is above this frequency (such as telephone ringtones and voices).
• The noise-cancelling function may have limited effect when used in quiet locations or when used to cancel certain
types of noise.
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