Wireless Range Up to 350 ft. Frequency DECT 6.0 Battery Talk Time Up to 7 hours (W740),Unlimited (W745), Up to 6 hours (W730), Up to 9 hours (W710, W720) Wearing Style Headband; earhook, neckband, Convertible Remote Answering Yes Microphone Noise-Cancelling Connectivity Wireless Multi-Connectivity Desk Phone, Soft Phone, Cell Phone Office Environment Noisy Adjustable Boom Yes Battery Charging Time 3 hrs. Battery Standby Time 36 hrs. Conferencing 4-way Manufacturer Warranty 1 Year Security 64 bit encryption Yes Acoustical Protection Yes: Sunguard® DIGITAL™ Bandwidth Wideband up to 6,800 Hz Cell Phone Compatible Yes Compatible Amp Built-in Connectors USB Designed For Hearing Disabled No Direct Connect Cord No Headset Speakers Single, Duo (Model W720) Headset Weight Convertible - 21 grams; Over-the-ear - 25 grams; Over-the-head monaural - 72 grams; Over-the-head binaural - 94 grams Mute Yes Spare Battery Included No
Superior call management Up to 350-foot range Three wearing styles Premium sound quality Optimized for Unified Communications Up to 7 hours of talk time
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Headset, battery, base and charging cradle, over-the-head headband, behind-the-head headband, USB cable, telephone interface cable, power supply, and headset fit kit with ear loops, ear tips, and foam sleeve.
Mfr. Part Number: 83542-01