★Can use the computer USB port, USB power bank or a mobile phone charger to supply the 5V support power, Battery power can also be used
★Provides 3W (left channel) + 3W (right channel) output power into a 4Ω speaker load and 5V power supply
★Integrated power switch and volume control (turn knob fully counter-clockwise to turn off)
★Module has short-circuit current protection, under-voltage lockout and over-temperature protection (shuts down at an internal temperature of 140C +/- 15C)
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