Specification: Material: ABS, Metal Color: Red/Blue/Green Output power: 5mW Wavelength: 532nm - 405nm Range in darkness: More than 1000m Power supply: AAA battery (not included) x2 Output mode: Constant wave Size: 14 x 155 mm 1. Made of premium materials to ensure durability and long life. Features sturdy construction, attention to detail, resistance to pressure and abrasion, and is designed for extended use. 2. The pointer pen is ergonomically designed to fit comfortably in the hand, providing a secure and comfortable grip. 3. Utilizes advanced crystal optics technology to produce a bright, focused beam with long-range visibility. 4. Ideal for pointing at targets on projection screens, video displays, and graphic presentations. Suitable for educational, professional, or outdoor use such as alignment or astronomy. 5. Simple operation: press the button to turn on, release to turn off automatically. Package Include: 1 x Pointer Pen