Rechargeable, Memory, Vibrating Digital Prayer Counter Ring - Adjustable Size (18/20/22 Mm) - RosegoldProduct Features: OLED Screen: Vivid OLED screen displays time and date. Vibration Mode: Provides vibration notification every 33 and 100 counts. Multi Channel Counter: Effortlessly perform four different dhikr simultaneously with four separate channels. Adjustable 3 Sizes: Comes with three adjustable sizes included in the box; fits every finger without worrying about size. Lock Feature: Secure your dhikr counts with the built in lock feature;