[GREQ]

1 • Sound purifier / Amp / Simple EQ / Crossfeed / Resistor adapter / CTIA-OMTP switch - for mobile phones 
2 • On/off switch for Purifier / Resistor / EQ / Crossfeed / Amp / Resistor / Mic / CTIA-OMTP switch - - -  Or a Selector switch for different modes of low/high resistance, low/high EQ or FR boost, low/high crossfeed, low/high gain/amplification
3 • On/off switch to preserve battery life - enter Charge-mode / CTIA-OMTP switch

 

[justrest]

1. Single Ended and balanced converter.
2. Sİngle ended and balanced input
3. Sİngle enden and balanced output

 

[Larethio]

1) What is this new product? Where is it used?
-its a 2.5mm balanced to either 3.5 se or balanced
2) What is the first button for – the one on the main barrel (on the left)?
-its a switch for impedance
3) What is the second button for – the one on the 3.5mm connector (on the right)?
-its a switch for either se or balanced.

 

[ExpatinJapan]

First button is for a time machine to destroy the future.

Second button is to go back in time.

 

[walfredo]

1 headphone amp
2 gain
3 crossfeed/xbass/3d

 

[00lunar]

Interesting!

 

[drjigarn]

1. Portable amplifier
2. Bass boost
3. Gain setting
 
Really looks interesting, can't wait for the details.

 

[The Fed]

Guess 1
1. An in line microphone that plugs directly into your phone with a built in CTIA to OMTP adapter so that it can be used on any 3.5mm port.
2. First Button is the all purpose button to answer calls.
3. Lower Button is the switch to change between CTIA/ OMTP TRRS standard.
 
 
 

 

[The Fed]

Guess 2
1. A small in line amp/dac that plugs into your smartphone with a built in CTIA to OMTP switch
2. First button is the power button for the amp/dac
3. Second button is the CTIA/ OMTP switch

 

[mscott58]

1. "universal" balanced to SE adapter
2. Balanced or SE selector for one end
3. Balanced or SE selector for the other end
 
Cheers 

 

[gr8soundz]

1. It's an IEM noise purifier for 3.5mm headphone outputs.
 
2. The first button is a mic passthrough on/off switch for when used with smartphones.
 
3. The second button is an IEMatch switch.

 

[eugenius]

It's a short cable with two connectors at the end of it.

 

[joeq70]

1) What is this new product? Where is it used?   You plug your headphones into the log end of it. The other end is connected to a source. It's designed to improve compatibility/synergy between numerous headphones and sources such as smart phones. 
2) What is the first button for – the one on the main barrel (on the left)?  This barrel is a tiny amp with a gain switch.
3) What is the second button for – the one on the 3.5mm connector (on the right)?    This is an impedance switch.
 
 
Also, 2) could be and impedance switch and 3) could let you switch between balanced and single ended.

 

[joeq70]

Alternatively:
 
1) What is this new product? Where is it used?   You plug your headphones into the log end of it. The other end is connected to a source. It's designed to allow you to easily switch between balanced and single-ended setups. 
2) What is the first button for – the one on the main barrel (on the left)?  This  barrel let's you switch between balanced and single-ended mode.
3) What is the second button for – the one on the 3.5mm connector (on the right)?   This switches between balanced mode and single-ended mode.

 

[boblauer]

Voltage specifically DC purifier filter 
On/off switch 
Gain switch Hi/Lo
 
thanks for the opportunity