Item Type: Finger Counter Material: Aluminum Alloy Color: Graphite Battery Type: Built in 40mAh lithium ion battery Matching System: For Android 5.1 or for iOS 10.0 or higher Screen: Organic light emitting diode 0.49 inches, 72 x 40 Charging Port: For Pogo Pin Sensor: Vibration motor 1、BT CONNECTION: Built in bluetooth 5.1, this ring can quickly connect to the for iQibla application, obtain accurate for Qibla direction, and synchronize data with smartphones and for Qibla watches. You can receive 5 prayer time reminders through the counter or smartphone application. 2、COUNTING FUNCTION: Integrated CNC button, you can easily track daily counts at any time. Click the button to count. When the count reaches 33, 66, 99, or 100, it will vibrate. 3、POWER SUPPLY: Equipped with a 40mAh large capacity battery, the ring can be used normally for 3 days. Charge adapters, mobile power supplies, or computers anytime and anywhere through a USB data cable. 4、EASY TO USE: Built in 0.49in organic light emitting diode display screen, 72 x 40 resolution, displaying time and count. 5、EASY CARRYING: Finger counter is lightweight, easy to carry, comfortable to wear, and stylish, a great gift for friends. 1 x Finger Counter 1 x Manual 1 x Charging Cable 1 x Charging Storage Box