• Large LCD display and large vibrating shaker
• Extra bright strobe alarm/telephone indicator
• Choose from vibrate, audio or strobe
• Can alert you to the telephone; including timed alarm calls
• 4 alarm options: shaker, flash & alarm, flash & shaker or alarm & shaker
• Telephone ringer amplification (95dB)
• Ringer tone/volume adjustment
• Shaker alarm (high/low)
• Battery back-up (sold separately)