The KX-TPA50 accessory handset is compatible with both the KX-TGP500 and KX-TGP550 SIP-DECT base stations from Panasonic. Up to six KX-TPA50 handsets in total are supported on both models.

2.1" Large LCD with white backlight on cordless handset Bright message waiting indicator Soft keys 100 phone book memory 10 Last dialed number Local or network intercom DID specific ring tones 10 days stand-by and 5 hours talk time