(Almost all recent version of android device have this function). With a USB, Micro USB and Type C connectors. It can also be used for computers. Android interface, distribution USB interface adapter cable.
eBay
Endoscope Camera USB-C Borescope Inspection Camera with 6 LED Lights Flexible Waterproof Snake Camera for OTG Android Phone PC
Aliexpress UK
Endoscope Type : Mico USB Endoscope (we will include a Micro to Type C adapter for free). Waterproof wire endoscope. Endoscope can not applied to Huawei, Lenovo & Coolpad. USB-C to Micro USB adapter will not help.
eBay
KERUI Industrial Endoscope Camera 4.3 "Single Dual Lens HD 1080P Car Inspection Borescope IP67 Waterproof Sewer Camera With LED
Aliexpress UK
No need to use your smartphone to connect to the WIFI and no need to download any driver software. So you do not need to worry about dirtying your expensive phone at work too. Note: The endoscope cannot take pictures and videos.
eBay
Industrial Endoscope Camera 1080P 4.3 "Single Dual Lens HD1080P Car Inspection Borescope IP68 Waterproof Sewer Camera With LED
Aliexpress UK
Noted : Make sure your phone can support OTG functionality and also compatible with the UVC ( USB video device class). 5.5mm/7mm two sizes calibers. Soft cord and hard cord two specifications. Get Your Desired Item at Lowest Price.
eBay
7.0mm USB Endoscope Inspection Camera Android Borescope Inspection Camera Waterproof 6 Adjustable LED For Type C USB PC
Aliexpress UK
Only when you have experienced it will know how bad it is. 1 LCD Digital Endoscope. Resolution up to 1080P, used for imaging capture, video recording. Resolution: 1920 1080P. 1 Protective Cap. Waterproof Level: IP67 (Only For i ens Bulb).
eBay
Handheld WIFI Endoscope Camera HD1080P HD1920P Wireless Camera Inspection Borescope LEDs for Iphones Android Phones
Aliexpress UK
Used with three lens accessories (hook, magnet, mirror), the viewing angle is wider, the usage scenarios are more, and the color screen is still clear in the sun. It can be used after sufficient power, no need to download APP, no need to connect WIFI to smart devices, simple operation.
eBay
Android Endoscope 5.5mm 7mm Borescope Inspection Snake Camera Waterproof with 6 LED Lights Compatible with Android Phone PC
Aliexpress UK
💡LED Lights: 6 LED Lights Compatible with Android Phone PC. 📱Compatibility: Android (OTG supported) & Windows PC. 🔌Connector Type: 3-in-1 (USB 2.0 + Micro USB + Type-C. Wall cavity & HVAC checks. Automotive inspection. ).
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Single Dual Lens Handheld Endoscope 4.3'' Screen HD1080P 2M-100M Aviation Plug Pipe Inspection Borescope Camera Waterproof LEDs
Aliexpress UK
【Multi-Faceted Flexibility】Our borescope provides a flexible and efficient inspection solution, with a 180° mirror flip button for viewing objects from various angles in tight spaces. Switch between black and color modes to suit your imaging needs.
eBay
HD1080P Industrial Endoscope 4.3'' IPS Screen 8MM USB Camera 2-100M Car Pipe Sewer Inspection Borescope 2600mAh Waterproof 8LEDs
Aliexpress UK