Despite its compact size, no larger than a business card, it boasts powerful functionality. The 20W+20W output power might not seem impressive at first glance, but don't underestimate it. This power output is perfectly suitable for everyday use. Coupled with its compact and stylish design, the X15HS Bluetooth amplifier is perfect for various settings, such as living rooms, bedrooms, studies, or desktops. Energy-efficient: In comparison to Class A amplifiers with significant power consumption and heat generation even when not playing music, the X15HS Bluetooth amplifier is more energyThe X15HS Bluetooth amplifier provides three input modes-Bluetooth, AUX, and USB. When all interfaces are connected simultaneously, switching between input modes is as easy as a quick four presses of the main knob. Furthermore, the X15HS Bluetooth amplifier employs a hardware priority mechanism. Upon inserting AUX or USB, the Bluetooth function is automatically disabled, and the mode switches exclusively to AUX or USB. To return to Bluetooth mode, simply unplug AUX or USB or give the main knob four short presses. Additionally, the X15HS Bluetooth amplifier comes equipped with a memory function. The chosen input mode before powering off will be remembered. Therefore, upon startup, the amplifier will seamlessly resume using the input mode from the previous session, ensuring a consistent and personalized user experience. Remote Control Enhance your experience with the remote control, offering seamless control over various functions: Switch Input Modes: Effortlessly toggle between different input modes. Quick Song Changes: Swiftly switch between tracks at your convenience. Flexible Volume Adjustment: Easily adjust the volume to suit your preferences. Power Control: Effortlessly turn the amplifier on or off with the touch of a button. Experience the convenience of versatile control at your fingertips. Colour:Black Material:ABS Package Contents: 1 set of Bluetooth amplifier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.