Smart Dhikr and Tasbeeh Ring, a ring with a prayer time reminder feature for Muslims with an LED screen and Bluetooth connection, multiple timing options - 20 mm (Black) 35 SAR Specifications: Screen: OLED, 1.2 cm, 72 × 40 Material: Plastic Charging Port: Jack Port Sensors: Vibration Motor Bluetooth: Bluetooth 5.1 Compatible Systems: Android 5.1 or iOS 10.0 or later Battery Capacity: 40 mAh Button: 1 Button Size: 20 mm/22 mm/18 mm Weight: 7.7 g Theoretical Working Hours: Up to 3 days in normal use / up to 5 days in basic use For orders and inquiries, please contact us via WhatsApp only (The mobile number appears when you click the contact button)