How to use:
<br />Install the APP, connect your mobile devices to Wi-Fi,then check the image.
<br />Power supply: built-in 700mAh battery
<br />Instruction link :https://1drv.ms/i/s!Ago7smi35dIngg3N0lQJEAEmMmj_ 
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<br />Features: 
<br />Suitable for heating/ventilation/air conditioning inspection, machine/engine/cable routing/automotive/boat/aircraft/aviation maintenance.
<br />2MP CMOS camera, resolution up to 1280 x 720 HD, high quality images and wide viewing angle
<br />Built-in 6 white bright LED lights, adjust brightness to improve visibility in low-light environment,
<br />IP67 waterproof, ideal for inspecting areas where is inaccessible or invisible.
<br />Comes with sucker, easy to mount the Wi-Fi box on the back of phone or other place with flat surface.
<br />Support photo taking and video recording on mobile phone.
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<br />Specifications:
<br />Material: plastic
<br />Charging: DC 5V via micro USB cable
<br />Cable length: 2/3.5/5 meters
<br />Camera head OD: 8mm
<br />Lens: 2MP CMOS camera, 6 LEDs
<br />Resolution: 640 x 480, 1280 x 720
<br />Protection level: IP67
<br />Frame rate: 30fps
<br />Viewing angle: 70-degree
<br />Transmission distance: within 5-30m
<br />Effective focal distance: 4-6cm (the best viewing distance)
<br />System requirement: iOS/Android/Windows/Mac
<br />Dimensions: 62 x 35 x 17mm
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<br />Package includes:
<br />1 x Endoscope camera
<br />1 x Wi-Fi box
<br />1 x USB cable
<br />1 x Small hook
<br />1 x Magnet 
<br />1 x Side mirror
<br />2 x Sucker 
<br />1 x Manual book      
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<br />It can be used for underwater camera, waterproof Micro-cameras, motor vehicle detector, sewer pipeline detector, search and rescue, criminal and custom detector, archaeological detect, the PCB detection, aviation and space industries, care and tractors industries, petroleum drilling industries, constructions and so on.