NEC DS1000/2000 - Manual (Page 18)

Installation
Using the Earloop Style Headset with your Cordless Telephone
14 ◆ Chapter 1: Installation DS1000/2000 Cordless Telephone User Guide
Ear Cushion Installation
To install the ear cushion (Figure 15: Installing the Ear Cushion):
■ Pull the ear cushion over the earpiece.
Figure 15: Installing the Ear Cushion
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Ear cushion
Pull over
earpiece