Solotecnologia.com : Wireless telephone CU328 [cu 328] - Telephone DECT of 2.4 Ghz    Screen LCD   7 hours Conversation   5 days in Wait   Transmission up to 300 m   It dates, Hour and Dual Alarm   Badge of Call for 40 Numbers   Calendar Telefónica for 50 Numbers   Rellamada last 10 Numbers   It admits Up to 4 Additional Terminals   Transfer of Call   Intercom   He/she confers to Three Bands   Speaker (Free Hands)   8 Polyphonic melodies and standard 4 tones (Possibility to define as call tone your favorite song of the MP3)   Control of Volume   Rechargeable battery of NEITHER-MH   Headphones Neckband with included Microphone   USB 2.0    Groove SD