A-E Generic 3.5mm CTIA Protocol In-ear Earphones Earpieces with Microphone & In-Line Control for Samsung Galaxy S5 (White) Universal 3.5mm in-ear earphones with in-line control In-line control design with Mic, volume up/ down and answer/ hang up phone calls function Golden plated audio plug to prevent oxidation and restore more authentic sound effect Universal 3.5mm plug, great for iPhone, Samsung cellphones, HTC cellphones, etc. Standard: CTIA Protocol (International Standard)