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 fun. 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 safer. Picky eating terminal: Do not like egg white/yolk children are picky eaters? Use this fun tool to evenly break the whites 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 / B-green 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.