COUNTING FUNCTION: Using integrated CNC buttons, daily counts can be tracked at any time. Click the button and it will vibrate when the count reaches 33, 66, 99, or 100. BT5.1 CONNECTION: Compatible with BT5.1, quickly connect to the for iQibla APP, accurately obtain directions, synchronize data with phone, receive 5 prayer time reminders. BUILT IN BATTERY: This Bluetooth ring is equipped with 40mAh high capacity battery that can be used normally for 3 days and charged through a USB data cable. VIBRATION MOTOR: This smart ring uses vibration motor sensor, lightweight and compact, and comfortable to wear, making it suitable for daily or gift giving use. CLEAR DISPLAY: This smart ring features a 0.49 inch organic light emitting diode screen with 72 x 40 resolution, displaying time, chanting and prayer frequency.