AK170:
Features:
Made of fine quality material, long-lasting to use.
audio -.
Low distortion provides a clearer and sound.
It has 2 main channel output.

AK370:
Features:
Made of fine quality material, long-lasting to use.
It is a audio -.
Suitable for S-D-, U disk, AUX input, MP3 format . 
Low distortion provides a clearer and sound.
It supports stereo . 
It has 2 main channel output.
Comes with a .

Specifications:
Item type:
Material: alloy
Color: Black
Input voltage: D-C12V
RMS p-ower: 20W+20W
Channel: 2CH
Load impedance: 4-16Ω
SNR: >90
Frequency: 20Hz-20KHz
Distortion rate: 0.01%
Package weight: 190g/6.7ounces
Package size: 140*120*50mm/5.51*4.72*1.96inches

Package list:
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