This is an accessory that connects to a number of Geemarc phones and alerting devices. It is a powerful vibrating pad that can be put under a pillow if you need that extra bit of security that you wont miss those important rings. This Black Vibrating Pad can be added to the following Geemarc products: Phones: CL1400, CL210, CL600, Amplipower 40, Amplipower 50 Alarm clocks: Wake'n'Shake Doorbell/ringer alerts: CL2 Please note that only the CLA2 Vibrating Pads are compatible with Wake Shake alarm clocks purchased after January 2010. White shakers are also available Shop all vibrating alarm clocks. About Geemarc Geemarc is a leading manufacturer of specialist telecommunications equipment for the hard of hearing and visually impaired. With an enviable global reputation to uphold, Geemarc remains intent on providing innovative, affordable hearing solutions that make a difference. Shop the full Geemarc range here.