Product feature: Short video page up and down, double click to save, take photos and video, volume increase and decrease, Type-C charging Wireless version: Ver.5.3 Support protocol: +BLE Transmit power: Classll(-6dBm~+4dBm) Frequency (Hz): 2.40GHz~2.48GHz Wireless transmission distance: 15 meters/590.55 inches Charging interface: Type-C Input current: DC 5V Battery: 30mAh *1 Battery life: 48 hours Charging time: 30 minutes Product size: 37x8x33mm/1.46x0.31x1.3 inches Product weight: 5 g Colour:black Material:plastic Package Contents: 1 x Wireless Remote Control Page Turner 1 x Charging Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.