Romicta 4.1 Channel Home Audio Amplifier Receiver, Bluetooth 5.0 Mini Amp with Subwoofer Output, RMS 4x50W MAX 800W for Home Theater/Car- USB/SD/AUX Input, for Passive Speakers and Active subwoofer

RMS 4x40W + 4.1CH Active Subwoofer SUB interface Only-- Offers you a maximum power of 800W, allowing you to control 2 pairs of high-capacity speakers and an active subwoofer (Only compatible with active subwoofers with SUB jacks). You also get an A/B switching mode, allowing you to control all the speakers together. ^^ High Fidelity SoundIt has a high-capacity transformer that gives you clear sound without distortion. It has a harmonic distortion less than or equal to 0.04 %, which helps you listen to clear and crystal-clear music.
(NOTE: NO stereo surround sound, perfect for listening to music, This model does not have radio function. )
^^ Multiple Connectivity: The latest version of Bluetooth 5.0, giving you a long range of 30 feet. You can connect it to your music streaming devices like PC/cell phone/laptop via bluetooth connection, 3.5 mm AUX cable or headphone jack. Also supports USB port, SD/TF card port. ^^ Special Functions-- With the remote control function, you can change the audio settings remotely, making you less tiring and more convenient.
^^ Easy Operation: With the bass and treble control knobs, you can enjoy music output according to your wishes. The bright digital LED display allows you to see changing settings easily. This 4.1 channel amplifier does not have a microphone function