Panasonic KX-TGA290B 2.4GHz Cordless Handset for the KX-TG2970B Phone System Provides control of an ADT Safewatch 3000 Pro Security 2.4 GHz Frequency-Hopping Spread Spectrum (FHSS) technology Emergency Keys on handset (Police, fire, medical) Call Waiting Caller ID with 50-station memory Handset speakerphone