The Panasonic KX-TGEA20B is an additional handset for the DECT 6.0 expandable phone systems. This model can boast enhanced noise reduction feature that suppresses background noise around the caller while simultaneously enhancing their voice. This feature makes it easier to hear your caller even if they’re in a noisy location. A powerful battery back-up system keeps you connected even when the power goes out. To maximize clarity or accommodate hearing loss a Tone Equalizer control feature actually lets you adjust bass mid-range or treble tones in a caller’s voice for maximum clarity. The DECT 6.0 PLUS takes the superb sound quality and outstanding range of DECT 6.0 phones to a whole new level.