Features: 100% brand new and high quality. It is especially suitable for long-distance communication in the field, and transmits a survival signal. It's a mirror but not just a mirror. The longest transmission distance can reach more than 100 kilometers. Specifications: Material: Acrylic Color: black Size: 55*55*7mm Package Include: 1 x mirror Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Due to personal measurement technique is different, there may be 1-3 cm error of the physical.Thank you!