Features: 1.Compatible App: Compatible with Bluetooth 5.1, can connect to for iQibla application, synchronize data to smartphones, which receive 5 prayer time reminders through the app. 2.Vibration Reminder: Integrated CNC button, can easily record daily count, click the button to count, when the count reaches 33, 66, 99 or 100, it will vibrate. 3.Long Standby: Equipped with a 40mAh large capacity battery, can be used normally for 3 days. Can be charged with adapter, power bank or computer with a USB cable. 4.0.49in Screen: This counter adopts 0.49in organic light emitting diode display screen with 72x40 resolution, can display time, chanting frequency, and prayer frequency. 5.Portable and Lightweight: The electronic counter finger ring has a compact size and light weight, comfortable to wear and can be used anytime and anywhere, and ideal gift for frineds. specification:Item Type: Smart Counter Ring Material: Aluminium alloy Size: Approx. 18mm/0.71in Battery: 40mAh lithium battery (built in) Matching System: For Android 5.1, for iOS 10.0 or later Screen: 0.49 inch, 72x40 Organic Light Emitting Diode Charging Port: for Pogo Pin Sensor: Vibrating motor PackageList:1 x SmartCounterRing 1 x Manual 1 x Charging Cable