4.1 Channel Mini Audio Amplifier Receiver, Power Amplifier, Bluetooth 5.0 This 4.1-channel mini audio amplifier is compact, portable, and easy to use, making it perfect for home or on-the-go car use. It supports connecting 2 pairs of high-capacity speakers and 1 active subwoofer (compatible only with subwoofers featuring SUB jacks). With its A/B switching mode, you can effortlessly control all speakers, delivering a versatile and immersive audio experience. Whether for daily entertainment or mobile use, it meets all your audio needs with ease. Product Features ?RMS 4x40W + 4.1CH Active Subwoofer Only?-- Offers you a maximum power of 1600W, 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 Sound?It 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, 3.5mm 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 Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!