This is an item that has aged, so the box is slightly scuffed, but it is a new, unused, and unopened product. "Home 110 Emergency Buzzer" Anti-Crime Buzzer (for windows) (1 lithium battery) BH-212P Battery life: Equivalent to 5 years in standby mode, approximately 2 hours of continuous sounding (3 minutes per sound, 6 times per year) Mode: Continuous alarm Volume: Approximately 87dB (1m in front, at 2.5V) Size: Approximately 25 x 25 x 105mm Weight: Approximately 55g (including battery) Included: 1 CR2 lithium battery Recommended by the National Crime Prevention Association Federation, Recommendation Number 719 There are up to 4 available, and the price will be adjusted if you comment.