1pc LP-A1 Digital Hi-Fi Stereo Audio Mini Headphone Amplifier 2ch Output Class-D power amplifier with adapter cable

LP-A1 Digital Hi-Fi Stereo Audio Mini Headphone Amplifier 2ch Output Class-D power amplifier  with adapter cable
Features:
Small distortion supplies clearer 2.0 channel, stronger and more powerful sound. 
With treble, bass, and volume control, very easy to use. 
Diverse play mode: can play music directly from AUX input and phones. 
Made of lightweight aluminum alloy, it is portable with overload, short circuit, overheat protections. 
Well circuit designed, supplies high efficiency and high fidelity without noise. 
Compact appearance and efficient output give you a perfect listening experience. 
Clear and natural vocals, ideal for music enthusiast. 
Compatible with car, motorcycle, MP3, MP4, computer speaker and other audio applications. 
Adopt high-fidelity power, easily connects to an extensive audio-visual product of CD/DVD, etc. 
It has the character of low noise, light weight, large power output and good sound quality. 
Specifications: 
Power supply: DC 12V/2A. 
Output power: 20W x 2RMS. 
Speaker impedance: 4 to 8 Ohm. 
Frequency response: 20Hz-20KHz. 
Total harmonic distortion: < 0.4%.
SNR: > 80dB. 
Color: Black. 
Net weight: 130g. 
Product size: 8.5X8.5X3cm

Package include:
one headphone amplifier 
One power adapter
One cable 3.5mm to 3.5mm Male .  Length: 78mm 
One user Manuel