Do you have a question about the Sven AP-670MV and is the answer not in the manual?
Do not use the stereo headphones while driving.
Avoid prolonged use at high volume to prevent hearing impairment.
Features stereo headphones with a microphone and a 2*3.5 mm (3 pin) connector for PC.
Includes adjustable headband, rotary microphone arm, and comfortable ear cushions.
Features unilateral cable connection, volume control on cable, and heavy-duty non-tangling fabric braid.
Connect the headphone jack to the audio output and microphone jack to the mic input.
Adjust the volume level using the control wheel located on the cable.