JTS RU-901G3 Instruction Manual page 29

(4) Ear-hook Microphone
1. Lightweight Dual Ear Hook Microphone
Try on whether the headset is fit.
Adjust the headband to a suitable width.
Tighten or loosen the curve of the ear-hook by twisting the loop or
expanding it.
Curve and bend the boom to fit your face.
Attach the detachable cable to a suitable place by a cable clip.
2. Lightweight Single Ear Hook Microphone
Try on whether the original curve is tight or loose.
Re-try and push the fixed curve against your earlobe.
Curve and Bend the boom to fit your face.
Attach the detachable cable to a suitable place by a cable clip.
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