明确需求，该买就买，买新不买旧。
If you can't hear audio in one AirPod, make sure your case is fully charged. Plug the case in, and place both AirPods in the case and charge them for at least 30 seconds. Next, open the charging case and use your iPhone or iPad to check that each AirPod is charging. Put both AirPods in your ears and test the audio. If that doesn't work, you could try to reset your AirPods.
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Classic arcade CRTs are quite different from modern VGA monitors. Standard VGA runs at 31.5kHz horizontal sync, meaning it draws 31,500 lines per second. Arcade monitors run at 15.7kHz, roughly half that rate. So unfortunately you can’t just plug a VGA cable into an arcade monitor: the monitor’s horizontal deflection circuitry physically cannot sweep the electron beam fast enough.，详情可参考safew官方下载
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Lastly, after the 16 colors, some terminals support a 256-color extended color set.