0.21 inch/5.5mm diameter Endoscope--The USB Endoscope camera probe is ultra-thin, only 0.21 inch/5.5mm, we can use this Endoscope into many hard-to-reach, narrow and confined places at home or outdoors, such as HVAC, vent pipe, engines, air conditioners, sofa corners, bathtub pipes, toilets, etc. | USB/Micro USB/Type-C Connector Endoscope--This Inspection Camera can be used with Android smartphones with OTG functions including Samsung S5 S6 S7 S8, S9, S10 S20; SONY LT26i, Z1, Z2, Z3, C3; Nexus 5, L24; Moto Xpro, Nexus6, Moto E, MZ17; HTC 9088, Nexus 9, M7, M8, M9, Note2, Note3, Note4 Note 5, P600, Windows PC, laptop, MacBook, etc. !!!DO NOT USE ON Samsung A5, J3 and iPhone/iPad!!! | Waterproof IP67 and with 6 dimmable LEDs--The Snake Camera is also a helpful tool when you have to find your treasures or other small objects from the bathtubs or pipes with water in. | Borescope with the semi-rigid cable--Unlike similar USB borescopes with soft cables, the ones with semi-rigid cables can be forwarded to the narrower place more easily, such as air conditioners, automotive cylinder, narrow pipe, etc. | Easy-to-use inspection camera--For OTG Android smartphones and tablets, you need to download an app as recommend by Instruction or Customer questions & answers. No need for more installations. For Macbook, Please use Macbooks’ bundled software Photo Booth or Quick Time Player directly. For Windows, Please flowing the description below.