Introducing USB powered speakers?

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USB powered speakers: a speaker that directly inputs digital audio signals into the speaker from the USB port on the motherboard, and then outputs the signals after processing through the built-in D/A conversion circuit of the speaker. On the surface, the advantage of using USB speakers is to improve the sound quality, because digital signals will not be interfered in the transmission process, and the signal purity is good. But the core of USB speakers is the D/A conversion circuit, and its conversion accuracy has a great impact on the performance of speakers.

USB powered speakers features:
The design is concise and easy to use. The USB1.1 or 2.0 standard interface is used for power supply and audio input, and the driver free USB interface is plug and play, fully compatible with WINDOW 95 98 ME 2000 and XP operating systems. 3.5mm stereo audio input interface is provided to link notebook, desktop PC, mobile phone, PSP, walkman, MD, MP3, handheld computer, PDA, Mp4, repeater, iPod, mobile phone and other devices;

The USB powered speakers only needs to be connected with laptop, mobile phone and other devices, and can play wonderful music without power supply. Some speakers are equipped with a large capacity lithium battery, which can play music for 3-5 hours. When the speaker battery is dead, we can connect it to the computer through the USB port to charge the battery.