Features:_x000D_WIDE RANGE OF USE You can use this remote control to swipe-short video software, take pictures with your mobile phone, read novels, read comics, etc._x000D_RING-SHAPE: Ring-style design, small size, light weight, easy to wear on the finger, ergonomic design, will not fall off, use will not be tired._x000D_Premium: The video controller adopts plastic, which is safe and skin-friendly, ergonomic rings design, and comfortable and beautiful to wear._x000D_When remote control is used with a mobile phone or other BT device for the first time, it must be connected first._x000D_Say goodbye to sore hands and cramped fingers: Our Multifunction Vibrating remote control truly lets you release both hands and enjoy your favorite medias in comfort._x000D_ _x000D_Notice:_x000D_1.Actual color may be slightly different from the image due to different light effect_x000D_2.Please allow 1-3cm deviation due to manual measurement_x000D_ _x000D_Description:_x000D_Size: 3.7x8x3.3cm_x000D_BT Version: 5.3_x000D_BT Transmission Distance: 15m_x000D_Charging Interface: Type-c_x000D_Input Current: DC5V_x000D_Battery: 30mah*1Package List:_x000D_1x Fingertip Wireless BT Remote Control