Replacement vibrator for old black model sonic boom alarm clock.Place this bed vibrator between mattress and box springs or under pillow and plug it into either Sonic Alert's wake-up alarm Lightweight and portable, unit responds to wake-up alarm, doorbell, telephone or baby's cry.BRD/C AUXILIARY JACK. Mfg Warranty: 5 Years Can only be used with old black model sonic boom alarm clock. Size-3 1/2 diameter.
Product dimensions (imperial): 3.5 inch L
Product dimensions (metric): 88.90 mm L
Package dimensions (imperial): 1.5 inch H x 4.75 inch L x 3.75 inch W
Package dimensions (metric): 38.10 mm H x 120.65 mm L x 95.25 mm W