Panasonic KX-TG5439S 5.8 GHz FHSS GigaRange  Shock and Splash Resistant Digital Cordless Answering System with Dual Handsets 5.8 GHz Frequency-hopping spread spectrum FHSS technology All-digital answering system with remote control from handset or outside line Convenient handset speakerphone Voice enhancer technology Shock and splash resistant handset