H91 CIS: Plantronics worked with Cisco to enable their popular Encore Binaural Headset to work seamlessly with Cisco's 7940, 7960 or 7970 IP Phones.

• 3 foot cable with Quick Disconnect option
• Adjustable clothing clip
• Bonus: FREE spare voice tube included ($6.95 value)
• Clear, adjustable voice tube
• Click-stop headband and turret
• Headband pad option
• Lightweight - only 1.7 oz/49g
• Quick disconnect headset cord allows you to walk away from the phone without removing the headset
• SES (Sound Enhancement System) tone control switch
• Single ear cushion headset provides clear sound quality and comfort even after hours of prolonged headset use
• Soft ear cushion for all-day comfort
• Supports Plantronics exclusive SoundGuard Plus and Call Clarity technologies for superior sound
• Voice Tube Technology provides superior sound with a lightweight and unobtrusive design

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