I looked at these little amps before I bought them. I wanted a TPA3116 chip and the Whuzi ZK-1002T seemed like the best choice. As far as I can tell many sellers are offering the exact same device (ie compare to Fosi) and it was at a great price. Sounded great for the price! Bluetooth works fine, audio input. Very easy to "assemble" (takes about 5-10 minutes). They need their own power supply, but I had 12v in a box from another old box. In general very satisfied!
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