1、Stable Connection: Bluetooth 5.1 Stable connection, turn on bluetooth, instant connect and can be used, easy to match, stable operation, to ensure normal use. 2、Selfie Bluetooth Remote Control Ring: Wear on the index finger, the ring can be adjusted to size, a thumb tap can control the shutter of the phone, easy to take photos, convenient and quick. 3、Support for Mainstream APP: Support a variety of mainstream short video APP, beauty camera, novel APP, to meet the application needs of different software. 4、Novels and Comics Page Turning: Easy remote control page turning, ebook up and down page turning, one key remote control to enjoy comfort. 5、10M Remote Control and Thumb Up Remotely: Easy to thumb up remotely, make brush shake audio and video more interesting; 10 meters range at will, for you to retain the nice moment. 6、Endurance: Built in lithium battery, rechargeable, small battery, large energy, low power consumption continuous escort, fully charged after the normal photo can be used for 5‑6 days. Item Type: Camera Remote Control Ring Clicker Weight: 11g/0.39oz Material: ABS Product Model: R20 Bluetooth Version: : 5.1 Remote Control Distance: 10m/32.8ft Battery Type: polymer lithium batteryBattery Capacity: 30mah (shipped with built in battery) 1 x Remote Control 1 x Instruction Manual