Note: The color of the product we ship is the color in the first picture, and the specification and quantity are shipped according to the quantity and specification described in the title. If you need to change the color or style, you need to contact us within 12 hours after placing the order. Our product description: Keep your family safe with this battery powered carbon monoxide alarm. Product Features: Sensitive to detect odorless invisible and deadly carbon monoxide in the air, and give the quick reaction once danger occurs. Super compact with size in 2.36 * 2.36 * 0.98 inches, backlit LCD display with alarm memory function. Loud 85dB alarm and a rapid flashing red LED will be sent out when danger detected, providing 24/7 protection. Test/ Reset button to check the electronics and verify the correct operation of the device, and to reset during alarm. 2 * AAA batteries(NOT INCLUDED) operated for convenience, low power indication to replace in time. It can be quickly installed in your home without requiring an electrician, no wire needed, not hardwired. Specifications: Product material: ABS Color: White Static Current: Note: Because the model and display effect of the monitor may be different, there may be slight differences in color, and the size is manually measured, there may be an error of 1-2cm, please understand.