This item is new in an opened box, straight from a store liquidation sale. I've tested item and it functions as it should. I ship daily via USPS thanks for looking.

From the manufacturer:

Features

• Unique output design and independent control: 4.0 channels can be divided into two groups of 2.0 channel outputs, and the volume of each group can be adjusted separately. And specially design a low frequency output to connect active subwoofer, very convenient to build 2.0/2.1/4.0/4.1 channel system.

• Rated 45W × 4 output power: supports speakers with 4-8 ohm impedance, easily to drive most home & car & boat speakers, can give your entertainment system a boost, with unrivaled sound superiority and lets you enjoy high quality amplified audio.

• Multiple audio inputs: besides Bluetooth5.0/stereo RCA/3.5mm AUX inputs, which can be compatible with iPad, cellphone, MP3 player, CD player, dataplay, computer, decoder, etc. Also with a USB(U-disk)/SD Card/MMC Card inputs, easily to enjoy high-quality lossless music at home or on the road.

• Perfect design with powerful function: with volume knob, treble and bass control, easy to get more delicate sound. Designed LED display to clearly show the working status in real time, and equipped with remote control, much easier to use, very suitable for indoor and outdoor audio system use.

• DC 12V-14V working voltage suits many places: beside used in home desktop audio systems, it also can be used in your car, your boat, your RV, your golf cart—anywhere you need a great amplifier with low distortion and acoustically accurate reproduction of music.