2 Channel Digital Amp Portable Mini Bass Treble Control Home Speakers Hifi Features: 1. Mini amplifier for speakers with all aluminium alloy shell, to eliminate all kinds of electromagnetic interference 2. Speaker amplifier has high power audio amplifier chip, 20W x 2 RMS power output, low distortion 3. Mini stereo amplifier adopts 3.5mm audio input, supports all kinds of audio input, such as mobile phones, DVD players, computers, MP3/MP4, etc 4. Amplifier home audio is great for use on your vehicle or your home, smart, lightweight aluminum casing 5. Home stereo receiver have two pairs of speaker output clips, easy to wire 6. Stereo amplifier home audio allows for full control of volume, treble and bass output nbsp; Specifications: Input impedance: 47Kohm Speaker impedance: 4 8 ohms Compatibility: Compatible with mobile phone, MP3, computer Volume control: Support Connection: Wired Interface: 3.5mm audio jack, input port Audio Source: Electronic devices with 3.5mm plug Material: Aluminum alloy Frequency: 20Hz 20KHz Distortion: lt;0.4% S / N: gt;80dB Frequency response: 20Hz ~ 20KHz Distortion: lt;0.1 (1KHz) Output power: RMS 20W x 2CH Input: DC 12 14.4V nbsp;?2A Size: Approx. 15.4 * 9.5 * 3.9cm / 6.1 * 3.7 * 1.5inch Color: Silver Package weight: approx. 310g nbsp; Package List: 1 x Power Amplifier 1 x User Manual [Aluminium Alloy Power Amplifier]: Audio amplifier adopts all aluminium alloy shell, to eliminate all kinds of electromagnetic interference and smart, lightweight [Bass Treble Control]: Audio component amplifiers are designed with main volume, treble and bass control knobs for more delicate adjustment of the sound, much fun and high playability [Strong Power]: Speaker amplifier adopts the newly madeinput socket has better durability and also provides a good transmission environment for weak signals, providing more powerful power [Easy to Install Use]: Stereo amplifier have two pairs of speaker output clips, easy to wire; Mini amplifier is perfectly suited for your desktop or a smaller space in your home or office, digital amplifier is easy to connect to your audio system with no software to install or settings to change [Supports Multiple Devices]: Amplifier home audio is supports all kinds of audio input, such as mobile phones, DVD players, computers, MP3/MP4, etc