Check the listing for details. Sensory Wrist Timer for , Teachers, Students, Simple Reminder with Silent Ala.... Color: Black, Condition: New. Listed at 21.75 USD. TIMER FOR (NOT A ): Perfect for the classroom or at home. Our discrete timer has a silent vibrating alarm on a fun wristband for . For ages 6+ EASY TO USE: push button allows children to set the timer countdown themselves. Perfect timer for reading, bathroom, toothbrush, potty training or classroom MULTIPLE TIME INCREMENTS: These classroom timers can be set for 1,2,3,4,5,6,7,8,9,10,20,30,40,50 or 60 minute increments with a simple button control. RECHARGEABLE BATTERY: Easy to recharge battery is and comes with a USB cord to easily recharge VIBRATING ALARM: There are no sounds from this timer wristband making it the discrete solution for a classroom setting.