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As high quality as pictures,
A large number in store, welcome to wholesale, it can be shipped the same day
The product uses relay type 4-way sound source selection / source switching / input selection board and the sound quality is not wasted.
It has no signal amplification funtion,just switching singnal source,
Power requirement: DC 6-15V
DC Port is 5.5/2.1mm (Inside + outside -)
PCB size: 107mm * 56mm
Inputs: 4 pairs RCA input
Output: 1 pairs RCA
NOTE
DIY KIT VERSION:you need solder the parts by youself
Assembled board:it is soldered and tested well
?
if you want to buy the best one with finished box,you can buy the link here:
https:///item/4000402055958.html?spm=2114.12010611.8148356.8.4cf05fb24v5Ya2
High quality gold-plated input port, like the picture, not a cheap RCA port
![](https://ae01.alicdn.com/kf/H116f67b3124d4e1f89ab54f8dc29ea3dU.jpg)