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The features of BT Studio 4100 are:

 * Display:LCD display - monochrome

 * Talk Time:Up to 600 min

 * Standby Time:Up to 100 h

 * Dialer Type: Keypad

 * Max Handsets Supported: 5

 * Phone Directory Capacity: 50 names & numbers

 * Aerial: Internal

 * Battery: 2 x AAA type Rechargeable battery

 * Max Handset Operating Distance: 50m

 * Max Handset Operating Distance (Outdoor): 300m

 * Dialed Calls Memory: 10

 * Caller ID Memory: 40 names & numbers

 * Function Buttons: Recall button, directory button, intercom button, auto redial button

 * Conference Call Capability: 3-way

 * Talk Time: Up to 600 min

 * Standby Time: Up to 100 h 

 * Display Information: Battery status

 * Additional Functions:Call timer, built-in clock, Alarm.