The little bird alarm clock nursing night light cover is made by ABS+PC+silicone, safe and lightweight, which is easy for kids to catch. Energy-efficient and eye caring LED creates a uniform non-flickering light that doesn't Hurt the eyes. You can adjust the brightness simply by Long press the head of the bird, clicking the head to switch the light; 5-60 Minute Sleep Timer Double-click on the head then press. to determine the time to turn off the light. Sound control time and temperature display, you can choose the alarm ringtone, according to the instructions of the product manual. Built-in 1200mAh lithium battery supports portable usage up to 8-10 hours on brightest light mode after a full charge.