Digital Dual LED 5 V USB Tester Strom Spannung Voltmeter Leistungsdetektor Amperemeter

With power amplifier dual speakers 2 3W;. support MMC / SD / MMA and other cards, support USB interface (U disk);. Dual Display. “MODE”: The switching sequence is USB→SD→FM→AUX→Bluetooth;. MODE: The switching sequence is USB→SD→FM→AUX→Bluetooth;.

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