Is the 800W peak power real?

No. The amp runs from a 12V 5A adapter, which caps real output well below that. Treat 4 x 40W RMS as an optimistic figure and expect modest volume for small speakers.

Can I connect a powered subwoofer?

Yes, it has an active subwoofer output. If your sub has no volume control of its own, you can only adjust its level with the included remote.

How far can the Bluetooth reach?

MUSICOZY says about 16.4ft (5m) with no walls in between. For a TV or PC, keep it within about 6.5ft (2m).

What comes in the box?

The amplifier, a remote control and a 12V 5A power adapter. Speaker wire and audio cables are not listed, so plan to supply your own.

Why does my USB music restart from the beginning?

If you unplug the power supply, playback resets. Powering off with the remote keeps your place in the MP3 file.

How do I connect it to a TV?

Use an audio cable from the TV output and set the input selector to line mode. Bluetooth to a TV is limited to about 2m.

Where can I buy the MUSICOZY Bluetooth Audio Power Amplifier S-299?

2 stores we checked sell it, including Walmart, Amazon.

MUSICOZY Bluetooth Audio Power Amplifier S-299

Last price we saw

$39.18at Amazon, last seen Oct 30

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Our take on the MUSICOZY Bluetooth Audio Power Amplifier S-299

The MUSICOZY S-299 is a small 4.1-channel Bluetooth amplifier that drives two pairs of passive speakers plus one active subwoofer. MUSICOZY rates it at 4 x 40W RMS with an 800W peak figure, which is a marketing number rather than a realistic continuous output from a 12V 5A supply. It runs on AC 110-240V through an included 12V 5A adapter and accepts Bluetooth, 3.5mm AUX, USB, SD and TF card input. No current price was given for this page, so check the live comparison before buying.