Features: 1.Memory card, AUX, U disk, MP3 format playback, support Bluetooth wireless connection. 2.Support FM stereo radio, with the characteristics of treble, bass and volume control. 3.Low distortion supplies a clearer, stronger and more powerful sound. Two main channel outputs, with remote control function. 4.DC/AC power input, suitable for home or car. Easy to operate, direct installation and use. 5.Made of iron material, it has the advantages of sturdiness and durability and long service life. Specification: Item Type: Power Amplifier Material: Iron Size: Approx. 19 x 15 x 4.5cm/7.5 x 5.9 x 1.8in Bluetooth Version: 4.0 Remote Control Battery: CR2025 voltage 3V capacity 240mA(built-in button battery) Rated Power: 15 + 15W Peak Power: 800W European Plug: 220V Memory card, AUX, U disk, MP3 format playback, support Bluetooth wireless connection. Load Impedance: 4 - 8 Signal to Noise Ratio: 85db Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.