Feature: 1. APP: Built in Bluetooth-compatible 5.1, it can quickly connect to for applications, obtain accurate for Qibla directions, and synchronize data with your smartphone and for watch. You can receive 5 prayer time reminders via counters or smartphone applications. 2. intelligent counter: With integrated CNC button, you can easily track daily Tasbeeh count at any time. Click the button to count.When the count reaches 33, 66, 99 or 100, it vibrate. 3. Long battery life: Equipped with high-capacity 40mAh battery, which can be used normally for 3 days. The adapter, mobile power supply or computer can be anytime and anywhere through the USB cable. 4. The Appearance Is Exquisite And Beautiful And It Can Be Counted At Any Time And Anywhere 5. Light weight, easy to carry: comfortable to wear, fashionable, which be a great gift for Muslim friends. Bluetooth-compatible: Bluetooth 5.1 Screen: OLED, 0 Charging port: Pogo Pin Sensor: Vibration motor Supporting OS: for Android 5.1 or IOS 10.0 Or Later size: Ring Inner diameter size is about 18mm Theoretical working hours: Up to for typical use/up to 30 days for basic use Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Usethere may be slight differences in products. Material: plastic colour: Black Package Contents: 1 x Smart Ring Tally Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.