Bluetooth Fingertip Remote Control Ring1. Long lasting battery life: Comes with a 200mAh charging compartment. Small body, large capacity, long battery life. Charge for two hours and work continuously for about 48 hours. The charging compartment and the bracket are integrated, and the mobile phone bracket function is added, which can place the mobile phone. 2. Like lock screen in the air: Like browse short videos, double click remotely controllable, like at will, and lock the screen with