SC250 Case Approximate Dimensions:2-3/4" L (without antenna) x 1-7/8" W x 1-1/2" Deep (including belt clip)

Weight Approximate: 3.7 oz.

Mode Button: Menu LCD Display Screen Selection

Select Button: LCD Display Contrast/Viewing-angle adjustments

Battery: Rechargeable Lithium, providing 90 hours of use

High Frequency 2 Way Radio: 902-928 MHz No FCC License Required

Smart-Signal Technology: Each SuperCell is a Smart Repeater for critical signals providing superior performance in buildings

Manual Alarm Activation: Push Top Button to send an Alarm signal.A Red LED will strobe rapidly with momentary Vibrating Acknowledgement

Motion Sensing: Lack of motion sensor that will automatically trigger a loud, audible alarm and transmit a alarm signal

Receive Call-Back Signals: The words CALL BACK appear in LCD Display, Initiated from SM2000 Command Base

Audible Tones: Optional for Alarm, Alarm-received, call-back and reset

Operation Status LED Indicators: Periodic strobe of Green LED