Bluetooth-Compatible 5.3 Fingertip Ring Remote Control Video Flipping And Browsing Remote Control Mouse Fingertip Remote Control Page Turner for Smartphones Wireless Camera Shutter Selfie Button. Features: Versatile Operation, Premium Construction, Wireless Convenience, Bluetooth-compatible 5.3 Connectivity, Ergonomic Ring Design. Specification: Color: black, white, pink, Product functions: short video pages up and down, for e-book pages, likes, photo zoom, video, volume up and down, reading slowly slides up and down, Type-C charging, Bluetooth-compatible version: Ver.5.3, Support Agreement: BLE, Transmission power: classII(-6dBm~+4dBm), Frequency (Hz): 2.40GHz~2.48GHz, Bluetooth-compatible transmission distance: 10 meters, Charging interface: Type-C, Input current: DC5V, Ring battery: 40mAh*1(401030), Continuous use time: 12 hours, Charging time: about 1 hour, Product size: 35*35*22mm/1.38x1.38x0.87inch, Packaging box size: 75*75*27mm, Gross weight: 42g. Note: Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. Please allow a 1-2 cm difference in measurements due to manual measuring.