I use this amp for two outdoor speakers and it sounds great. Please note that the Bluetooth antenna you receive in the official product photo does not match this one. It's a short black plastic antenna. FM tuning is next to impossible if you're not using the remote. The remote [optical remote] appears to be generic and not at all tailored to this product. Most buttons do nothing. I only use the remote to tune into radio stations using the plus and minus buttons as the numeric keypad does nothing. Their Bluetooth range is about 15 feet. Their optical range is a disappointing 11 feet. I ran the amp at 1/4 volume for about 90 minutes and the amp generates a noticeable amount of heat. The best part seems to be the flash drive slot. It plays songs from a flash drive in WMA, MP3 and WAV formats. It finds files and can play them randomly no matter what folder they are in. Excellent!
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