Outfit your home with lasers and watch what intrudes into your space. The kit includes 3 lasers that allow you to create an invisible barrier. The lasers are arranged in a 360-degree angle to protect your property. When the invisible laser barrier is disturbed, an acoustic signal or warning lights will activate. It works up to 120 cm. Required items: 6 x AAA batteries (not included). Age: 6 months. Warning: Not suitable for children under 3 years. Contains small parts.