Features 【Compact and Practical. 】Mini Power Amplifier is lightly and portable， suits for home and desktop use. Not only as a power amplifier but also can as a PC sound card. Integrated plastic case with LED display, unique design makes it smooth and textured. No visible screws on the to ensure its solidness and clean appearance, the VU meter will dance with the music, beautiful and practical. 【Hi-Fi sound 】Stereo HiFi Digital Amp has HiFi clear and clarity sound, no audible noise. our engineer spent a lot of time to optimize the circuit to ensure no noise even at the maximum output power. (100W (50W*2) MAX output power, which can drive most home speakers.) 【 5.0 Lossless Transmission】 Amplifier signal stable, long transmission distance (up to 12m), intelligently compatible with 99% of devices. Pure copper gold-plated terminals to strength the stability and accuracy of audio transmission signal. 【Multi-function】Mini 5.0 Power Amplifier is Supports multiple inputs (AUX/USB/Bluetoth). The USB port supports both computers (no driver is required) and phones (with OTG function), It can provide you almost all methods that you want to enjoy your music. 【High Service 】If you need any technical service about the Home Theater Components. You can us anytime. We will get back to you within 24 hours Spec: Item Type: Mini 5.0 Power Amplifier Feature Type: 2.0 Stereo Output Power: 50W and 50W Power Supply: DC9V-24V Distance: Approx. 12meter / 39.4ft(barrier ) Protocol: 5.0 Product Size(LxWxH): Approx. 110 x 90 x 50mm / 4.33 x 3.54 x 1.97in Audio Input: 3.5mm stereo sound input, stereo sound input, small memory card, U disk, USB audio input(can be connected to computer, mobile phone, OTG, tablet OTG) packing list: 1 x Mini 5.0 Power Amplifier 1 x User Manual Notice: Power And Power: The power amplifier adopts for TPA 3116 chip, the actual output power can 50W per channel, 2 channels total 100W (24V power supply), equipped with 12V5A power supply. The output power is 30Wx2 (4 ohms), if connected to 8 ohm speakers. The output is about 15Wx2. If you need more power, you can configure the power supply yourself. Be careful not to exceed 24V, otherwise the chip will be burned, and the power supply should not be too small, because power = voltage x current, if the current power is less than 50W, then There may be a power outage. Amplifier Output: The power amplifier is a constant power amplifier, supporting passive audio or speaker of 4, 6, 8, 16 ohms. Cannot be connected to active audio such as computer audio, and not suitable for passive subwoofers. The four pillars behind the power amplifier are output interfaces, and cannot be connected to 3.5mm headphone plugs or plugs. Car Modification: Conventional 12V batteries for cars and motorcycles can be directly modified for power supply. 24V batteries such as large trucks are not recommended, because the voltage will exceed 24V after the car is started. Unless you reduce the voltage through other equipment, the power amplifier will heat up too much. Long term use is not good for the chip, or even burns out. Package List 1 x Mini Bluetooth 5.0 Power Amplifier 1 x User Manual