The description is not only bad and almost incomprehensible, it is also based on the wrong item, namely the amplifier MA-100 from the same company. This is however to the MA-700, whose performance level "only" two stereo channels has to be (and not 4) and whose input "only" between USB, AUX and FM switched. An adapter for MMC and SD card does not exist. Who, like me, only ordered what he can see on the pictures, and not by a borderline text can intimidated (let's see what the translation program from this set used in the translation back makes into English), which is not disappointed and gets a sufficiently low-noise stereo amplifier ... - With a USB input for MP3 files, although ignored and all subdirectories will be played in sequence; - An auxiliary input on RCA connectors; - An internal FM (FM) receiver, which, however, a permanently attached wire antenna only really strong field transmitter reproduces reasonably well, but otherwise on his search many channels stores where only noise and confusion station can be heard. - A four-pole speaker cable with matching connectors and open ends, here are needed soldering iron or terminal blocks - A cable with an infrared sensor for remote control - And the remote control itself, the sensor over one to two meters is effective in good alignment and with which one can switch loud and quiet, transmitter channels in FM mode and MP3 files in USB mode and set the desired operating mode. - Each with a knob for maximum volume, treble and bass settings and buttons on the device for the most important functions, but they are with inserted USB stick hard to use. - "Received remote control command" 1 LED rear (red) to indicate "power on" or 1 LED front for display: flickering; "USB Mode": slow flash, "AUX" and "FM (FM)" - Mode: continuous lighting.
Who does not the amplifier in a 12-Volt - (car, boat) used environment still needs a power supply (12 volts, 5 amps or 60 watts), which I had ordered the same and its connector fitted randomly. Furthermore, a source device for the auxiliary input (in this case an old disk-man) with the appropriate cable (in our case, 3.5mm stereo jack to 2 x RCA) and halfway matching boxes (in our case, 2x 8 ohms or 2x 16 Ohm impedance, I'm sure, would go 4 Ohm) adequate connection cable to the speakers. We have a trial run the amplifier for a week rainproof in the damp autumn air on our terrace in a test set and no failures of the amplifier experienced (but the disk-man)
Summary :: This gives an amplifier for under 20 euros for stationary use in a protected against splash water environment where it is installed you can deal with the soldering iron should (for the connection of speaker wire and in the case of car or boat, the supply line via the not supplied !! connector - Ensure that polarity !!!)
Point deduction - For the miserable and misleading product description, - The lack of instructions for use (even in English), so that the function of some buttons remain unclear on the remote control, - For the limited usefulness of the FM (FM) mode: no fighting chance for 'Müll'kanäle; lack of connection for a better antenna - And for the lack of power switch, which can be replaced with the ignition key in the car / boat but.
It is hoped that the seller in the self-interest can revise the product description and does not rely on translation programs, hold down the "USB" for the abbreviation of "washer". in its present form (Oct. 2013), it is an insult to the potential buyer.
