Never miss a phone call again with the AmpliCALL10. When your telephone rings, this telephone ringer indicator will ring very loudly and flash to let you know there is an incoming call. A CLA2 shaker pad can be plugged into the AmpliCALL10. When the telephone rings, the shaker pad will vibrate, making this an ideal solution for heavy sleepers who are expecting important telephone calls at night. Features include: extra loud ringer (up to 95dB); volume control; tone control; visual ringer indicator; optional shaker; range of up to 25 metres; wall mountable; and supplied with a phone line cord & 4 AA alkaline batteries. It has 4 different alarm options: off; flash and alarm; flash and shaker; and alarm and shaker. Plus, if you live in a large home, the AmpliCALL10 can be linked to another AmpliCALL10 in order to extend its range.