Instruction: Answer the given question using the supporting document.

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Question: Does the unit have a loop feature or will it continuously loop files on an SD or USB thumb drive?
Document: I bought this to replace my MP3 player & Amp I used on my beach golf car. Fits great in the lockable glove box. Sounds good, I put a 4 gig SD card in this unit and it plays 1,000 of my favorite songs continuously. Everything I have is hooked to a toggle switch and wulla - there she blows!!!
The USB/SD MP3 player has good performance incorporating non saturating digital EQ, and remembers the digital volume and track being played. The remote selects the track to play, the volume, the EQ, and the input Mode. The FM is good sounding, and with the remote can automatically preset the FM stations which can be selected using the remote.
Without modification I would rate this device as two stars (I would probably not use it).The LP-A6USB/FM is a mini Stereo BTL 3 Watt RMS (with an 8 Ohm speaker load) amplifier with tone controls, incorporating an FM player, a USB/SD player without a display, a remote, and no power supply. The lack of a display and the power supply noise on the output are negative features.
This makes a nice stereo for my garage. It takes 4 ohm or 8 ohm speakers. I have hooked it up to an old pair of car speakers and it works great. Now I can use it to listen to my phone with a cable or and SD card. The FM tuner is nice too but there is no way to see what channel the radio is on or what track is playing on the SD Card. This is the only reason it gets 4 stars instead of 5.
For such a low cost this is pretty impressive. Love the ability to just load songs onto a USB stick. Perfect for my dusty garage. I paired it with the Dual LU43PW Indoor/Outdoor Speakers and I am happy.
Good compact unit, easy to mount and hook up. Just not as loud as I expected. I would recommend this for any vehicle that runs quietly!
I got it from USA seller. Plays from sdcard and USB stick, FM stations and of course has RCA, 3.5mm imputs. It's supposed to use sanyo tripath amp chip. I did not open it but sound quality is great and it has no problem driving Pinnacle S-Fit 150 "surround" speakers.Finish is good with the exception of knobs that scrub against the face plate.
I got this because of the FM radio, RCA plugs, USB and remote. Works just as advertised but the 180W + 180W on the top is silly, the 20W may be a strech too but that 's not what i bought it for. you can't tell what station it's tuned too but the remote let's you pick one of ten that  the scan picks up and remembers. No way to hook extra antenna and the built in one that is attached is very short with limited sensitivity but works.
This is a solid little amp. I had to find an A/C plug that supported the amps/volts output (12v/2amp). It sounds fine as an outdoor system amp. The remote was a bonus. I was replacing a boom box that stayed outdoor year round that was getting old. This was a great replacement with the built in FM stereo tuner and additional auxiliary port/USB. FYI, the USB port will charge a mobile device while the amp is powered on.
First unit was DOA. Shipped from China, probably shipping damage. Seller shipped me a replacement asap. Works great. Use it for the garden with outdoor speakers. Keep in mind you have to buy your own power source (AC adapter). Great value for the money, even the remote works.
Answer: It has a mode feature , then you can change into SD, usb,...etc.