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Digital Clarity Power™ technology including Multiband Compression, Noise Reduction, Acoustic Echo Cancellation and 50 decibels of intelligent amplification at 118 dB SPL to make calls louder, clearer and easier to understand
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Bright red visual ringers in handset and base flash to signal incoming calls
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Concave earpiece creates an acoustic chamber to provide crystal clear sound
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Full-duplex speakerphone in handset
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Adjustable volume and four (4) tone settings provide a customized listening experience
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High contrast white LED screen is bright and easy to read
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Contoured handset shape is comfortable and easy to hold
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Generously spaced backlit buttons make dialing easy
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Digital 5.8GHz transmission provides interference-free sound
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Call Waiting Caller ID with 40 name and number memory
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Hearing Aid Compatible
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Add up to three (3) expandable handsets (model C4230HS™) to your C4220™ and enjoy loud, clear conversations in any room with a power outlet
- Drop-in battery provides 3-4 hours talk time and up to 6 days standby time