working principle: the use of centrifugal force to make egg white and yolk mix more evenly, will not destroy the shell. More hygienic: Simple and . The whole process does not damage the shell, and the white and yolk do not come into contact with the air, making it cleaner and . Picky eating terminal: Do not like egg white/yolk children are picky eaters? Use this tool to evenly break the and yolks into the shell. When the egg is cooked, it will turn into a golden egg with the yolk and white mixed together. Simple operation and easy absorption of nutrients. Food grade material: Soft food grade silicone pad can provide 360 stable protection for eggs, safe and effective, and will not damage eggs. Durable material: Transparent window design, using thickened computer material. Transparent, wear - resistant, anti - fall, give you a high quality experience. Battery capacity; 1500mAh Input voltage: 5V Input current: 1A Rated power: 15W Battery voltage: 3.7V Charging time: 3 hours Material: ABS+PC+silicone colour: A-white Package Contents: 1 x Egg shaker 1 x USB 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.