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depends on how much of a load you have while using it. using 10 watts there isn't much but once you reach a cerain point the cooling fans turn on
Sorry, there was a problem. Please try again later.Dear Customer, Thanks for reaching out to us regarding this question. The noise distance of Explorer 290 is 1m<55dB (air-cooling fan), it doesn’t affect the use. Hope the above information can solve your problem. Should you have other questions or concerns, feel free to contact our customer service. Thank you for your support. Best Regards, Jackery Support Team
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