Just Mixer S has been selling on Amazon
 
Product Description
The JUST MIXER S is an ultra-small and versatile 3-channel audio mixer that can be used with mobile phones, tablets, and computers. It comes with independent volume adjustment buttons, making it easy to control the levels of each input. With its microphone input support, the mixer is perfect for outdoor parties, video production, and even teaching. You can connect it to various devices such as game consoles, mp3 players, and smart speakers to mix different audio sources together. This feature is especially useful for teachers who need to mix different audio sources for their presentations or online classes. The compact size of the JUST MIXER S also makes it easy to carry around and use on the go.

Features
1. USB or battery power mode : It can be powered by 5V / 1A USB or 1.5V battery (AAA).
2. Stereo 3 input / 2 output : It can connect 3 audio inputs at the same time. Each track has an independent volume adjustment knob, which can be output by headphones and speakers.
3. Ultra-small mixer : Easy to operate and easy to carry.

Specifications

Gain	25dBm
Current consumption	70mA (max)
Power supply	USB 5V/1A power or 1.5V battery (AAA)
Dimensions	100 x 55 x 15 mm / 3.9" x 3.1" x 0.6"
Weight	70 g / 2.5oz   (body)

UINs:FR231319_01UZBG

※ It is recommended to set the input volume to around 50% to prevent output distortion.
※ Only support for powered Microphone.​
※ When the power is turned off, there will be a little input sound. This is normal and not abnormal. It will not cause a dangerous state such as fire. Please use it with peace of mind.

Manual Download​