Can the speaker still be fixed or used if it has been overcharged?
The manual for the YS-219 Wireless Speaker does not explicitly state that overcharging will permanently damage the device, but it does provide specific charging…
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tekkiwear YS-219 Wireless Speaker and Karaoke Microphones User Manual — questions & answers
Read product questions and troubleshooting answers linked to tekkiwear YS-219 Wireless Speaker and Karaoke Microphones User Manual.
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What is the size of the AUX auxiliary input port?
The manual for the Tekkiwear YS-219 identifies the "Auxiliary input port" (labeled as item 1 on the rear panel), but it does not explicitly…