Strong attraction, built-in, easy to adsorb, without need for complicated installation, and enjoyable creation 3-speed freely, button 3-speed dimming, light and dark as you like, soft and not dazzling Multiple compatible interfaces, cold boot opening+1 / 4 screw holes, suitable for various devices, can be installed with this product to meet your selfie or regular needs Long battery service life, built-in 300mAh rechargeable battery, with usage time of 120min and a fast charging time of 80 minutes, helping you enjoy your creativity Extremely lightweight, weighing only 20g, portable and small size, every happy moment in life