Plantronics H31-CIS is Ideal for those who need a comfortable, convenient headset. Now you can have the best in convenience and comfort without compromising quality. The ultra lightweight, ergonomic design rests comfortably behind the ear, while our soft, pliable Versatip eartip gently conforms to the natural contours of your ear.

Key Features:

• Includes Cisco Certified Adapter Cable - No other cables or adapters needed for your Cisco Phone
• Flexible Eartube style
• Quick Disconnect feature
• Innovative design
• All day comfort
• Easy on, easy off

<= This headset has a Modular Connection at the end. It plugs directly into your Cisco IP telephones headset port. No amplifier and additional cords are required.

Note: This headset is the direct connect solution for the Cisco IP telephones:

Cisco IP 69xx
Cisco IP 78xx
Cisco IP 79xx
Cisco IP 88xx
Cisco IP 89xx
Cisco IP 99xx

For more detail information see Plantronics H31 Starset datasheet

Optional Accessories for the Plantronics H31:

Plantronics Voice Tubes Mirage Headsets-Clear (3-Pack)

Plantronics Voice Tubes Mirage Headsets-Color (6-Pack)

Plantronics H31/H31N Versa Tip

Plantronics H31 / H31N Versa Earpiece Kit (6 sizes)