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US National Adoption of Portable multimedia equipment - Determination of battery duration - Part 1: Powered loudspeaker equipment IEC 63296-1:2021 (ANSI/CTA-6008)
A primary battery or secondary battery can be used as a power source for the loudspeaker and its composite equipment
This is the US National Adoption of Wireless power transfer (WPT) - Glossary of terms IEC 63006:2019
It is primarily intended for audio applications in professional recording
In order to achieve efficient power transfer to multiple receiving devices
Assistive Listening Devices and Systems for Active Assisted Living - Part 1 Audio and Video US National Adoption of PortableUS National Adoption of Assistive listening devices and systems for active assisted living Part 1: General IEC 63087 1: 2021 (ANSI CTA 6020) This is the US National Adoption of Assistive listening devices and systems for active assisted living Part 1: General IEC 63087 1: 2021. IEC 63087 1: 2021 specifies requirements, and the associated methods of measurement, for the electroacoustic performance of personal listening systems. This document specifies
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