Product presentation:
1. Do you have a line level signal source (TV audio, MP3 player, video game, phone, tablet, computer, speaker, etc.) that is just not loud enough?
2. Good performance audio source signal amplifier with volume control:Adopt new sound source signal amplifier circuit architecture, output level signal gain +20dB
3. The new power boost protection module is convenient for outdoor use: USB 5V power supply, suitable for outdoor mobile power supply
4. Wider range: 3.5mm + RCA interface for input and output, compatible with more devices
5. Compact Desktop/Desktop Mini design
6. Independent output volume adjustment
7. Adopt compact and thin desktop mini - type design, compact size, compatible with any device
8. Simple installation: plug and play input and output easy installation, you can enjoy a different audio experience

Product Parameter
1. Input impedance: 100K Ohm
2. Output Gain: +20dB
3. Frequency Response: 20 Hz - 20K Hz
4. SNR (Signal to Noise Ratio): More than 107dB
5. THD (total harmonic distortion): Less than 0.08%
6. Intermodulation Distortion: Less than 0.01%
7. Input port: Stereo 3.5mm jack and RCA interface
8. Output port: Stereo 3.5mm interface and RCA interface
9. Power supply: USB 5V
10. Net Weight: 0.3 kg
11. Packed weight: 0.45kg
12. Product Size: Length 108 mm x width 75 mm x height 38 mm
13. Package Size: Length 185mm x width 135mm x height 65mm

Kit list:
1. Headphone speaker amplifier prestage stereo signal amplifier x 1
2. USB power cord, length 120CM x 1
3. USB power adapter US standard x 1