Product color: black/white/pink Product function: touch screen function, short video page up and down, page up and down slow sliding, e-book page turning, automatic like, photo shooting video, song switching and pause, active mouse function Bluetooth version::Ver.5.3 Supported protocol: EDRandBLE Transmitting power: classII (-6dBmand4dBm) Frequency (Hz): 2.40GHz2.48GHz Bluetooth transmission distance: 10 meters Charging port: Type-C input Input current: DC5V Ring battery: 90mAh x 1 (401030) Continuous use time: 24 hours Charging time: about 1 hour Ring size: 39×36×31mm Packaging box size: 76.5 x 85 x 36mm Ring product weight: 13.5g Full set weight: 110g Standard configuration: remote control and charging compartment and Type-C cable and manual and packaging Outer box size: 40 x 38.5 x 18.5cm (Quantity: 100pcs/box Weight: 11.47kg) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin