1. Material: ABS, electronic components
2. Remote control technology: 2.4GHz
3. Laser distance: 2803: 30 meters, 2804: 200 meters, 2805: 100 meters, 2806: 200 meters
4. Interface: USB interface
5. Built-in battery: 2803: 360mAh lithium battery, 2804: 400mAh lithium battery, 2805: 360mAh lithium battery, 2806: 360mAh lithium battery
6. Support system: Win10/8/7/xp/Mac/IOS, Android
7. USB charging, convenient and practical
8. Small size, easy to carry
9. Mini body, built-in receiver, save space
10. Stable 2.4G wireless radio frequency technology
11. Plug and play, diverse and compatible