OLED SCREEN SHOWING STATES: From the screen, you can directly know whether the focus is successful or not. Is the shutter released, is the camera busy, etc. CONVENIENT AND POWERFUL: All buttons are on the front. The function does not need To be switched by the side switch, and the prompt is synchronized on the screen. SMALL AND EASY TO INSTALL: Equipped with elastic straps and selfie stick buckle, Can be worn on the wrist, mounted to selfie sticks and tripods BUILT-IN BATTERY: No need to buy Coin Cell batterys, charge with a USB magnetic cable, Environmentally friendly AND WATERPROOF: Designed and manufactured according to high standards of outdoor electronic products, waterproof, dustproof and wear-. Colour:black Material:plastic Package Contents: 1 * Bluetooth Remote Control 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.