Audio Power Amplifier, 2 Channel Digital Amp Portable Mini Bass Treble Control Product Details 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 Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.