Teflon wire, rotating boom more than 20, 000 times; teflon boom swivel pad, positioning accuracy, high wear long service life; hearing protection technology, care of the user's hearing; superior sound catheter technology, high voice clarity; cardioid microphone; quick coupling head function.
et; connection
Types: quick connector; boom model: flexible boom, 330 degree free rotation;wearing styles: headband can be adjusted for left or right ear; comfort
Degree: leather / sponge earmuffs, ear angle flexible automatic adjustment;

Weight: no wiring 50g; qd first point of contact: phosphor bronze
Gold-plated; cable length: 1.0 meters straightened; housing: pa66 shell
Injection; cycle plug life: more than 20, 000 times; storage / use
Temperature: -20 ¡æ ~ 55 ¡æ;