Feature: 1. Wifi wireless design, it is different from the traditional endoscope's restrictions on smart phone models and system requirements. It can be applied to all smart phones with Wifi function. 2. Small in size, it is simple to operate, easy to carry, and can be quickly connected to various types of smart phones, tablets, laptops and computers. 3. Professional design, it is equipped with a small probe with a diameter of 8mm with a high resolution of 2MP, and it can easily enter any place that you can't touch or sight. 4. 6 LED lights, which can enable users to obtain clear visual effects in dark environments, and make everything simple in various complex environments. 5. Wide range of application, it is suitable for equipment inspection and observation, allowing your vision to go deep into narrow places. Specification: Item Type: Endoscope Model: F99 Material: ABS Rechargeable Source: 1x1800mAh 902830 Lithium Battery (Built In Battery) Purpose: It is suitable for equipment inspection and observation. Resolution: 1280x720 Viewing Angle: 70° Camera: 2.0MP Focal Length: 4~6cm (Most Suitable) Camera Diameter: Approx. 8mm / 0.3in Lamp: 6 x White LED, Adjustable Waterproof Rating: IP67 Frequency: 2.425GHz-2.493GHz Transmission Distance: Approx. 5-30m / 16.4-98.4ft Support System: for iOS, for Android, for Windows.. Package List: 1 x Endoscope1 x WiFi Box1 x Charging Cable1 x Hook1 x Magnet Hook2 x Suction Cup1 x Reflector1 x Waterproof Tube1 x Manual Note: It cannot be used in high temperature equipment.