See reference number 2 on illustration
2.1Assembling the Over-the-Ear Headset
2.2Assembling the Over-the-Head Headset
See reference number 3 on illustration
3.1To convert the headset for the left ear, first pull out the front part of the microphone boom (on noise-canceling models) then rotate it downward facing the opposite direction. Voice tubes simply rotate.
3.2Then rotate the headset receiver downward to the opposite direction. It only rotates in one direction.
3.3For over-the-ear headsets, place earloop on opposite side of headset receiver. For over-the-head headsets, remove cable from cable notch, rotate pivot pin holder as shown and replace cable in cable notch.
See reference number 4 on illustration
4.1For over-the-ear models: To put on the headset, move the earloop away from the receiver and place the ear- loop over your ear. This configuration allows further boom control by adjusting the flexible earloop.
4.2For over-the-head models: Adjust the headband length so the stabilizer bars rest above your ears. If necessary, to increase or decrease tension on your head, bend the metal part of the headband inward or outward for desired comfort.Push the receiver close to your ear until it feels comfortable and you can hear the sound from the telephone clearly.