Bt39s paragon 650 with 32 minute digital answering machine is the flagship paragon product it not only boasts the best features of the 510 and 550 200 name and number directory protected by a non volatile memory 4 line backlit inverse lcd display selective group ringtones sim readerwriter type 2 caller display headset port and sms text messagingsennheiser cc 520 binaural headset personal standards at work demand professional means of communications this binaural headset is specifica