3 Review(s)

5V power supply can output 3W +3 W power, can be directly driven 4O, 8O small speakers, the output power, enough energy, good sound quality. Rated working voltage 2.5V - 5V, limit operating voltage 5.5V. Ultra-miniature design, can be easily placed in a variety of digital products within a small space, high efficiency amplification. Excellent noise control. When there is no audio input, you cannot hear any noise even you close to the speaker. With Micro USB power supply interface, mobile power supply or USB charger can be used through mobile phone data line, or 3.7V lithium battery can be used, USB 5V power supply