The objective of this Recommendation is to provide a standardized method to evaluate the performance of true wireless stereo headphones with regards to compliance with existing environment, health and safety regulations and standards.

Furthermore, this Recommendation suggests a method to evaluate an aggregate score, reflecting the overall performance and compliance.

This Recommendation evaluates the following attributes:

– Substance health risk

– Hearing health risk

– Ergonomics

– Radio frequency (RF) radiation safety

– Battery safety

This Recommendation is applicable to true wireless stereo (TWS) headphones such as smart earphones, including headphones and necklace headphones.