Auto-Vox B40-C/A118-C is so fabulous that it has been in Top 10 Best Dash cam for 3 years in a row(2014-2016). Check video quality before deciding whether to buy it.
Please click the following links.
https://www.youtube.com/watch?v=ivl6X_jillg
https://www.youtube.com/watch?v=2VUjZC0KZDw

Features:
-Uses a capacitor as its power source rather than the internal battery
-High definition 1080P video resolution including clear audio
-Built-in 1.5″ HD screen: With this screen, you can review the recorded videos. It supports playback.
-Super 170 degree view angle: The extended angle gives your recordings a panoramic quality that encompasses both sides of the road and its surroundings.

Advantages:
-Compact & contoured design: Seamlessly camouflage behind rear-view mirror, just like one part of the vehicle
-Capacitor powered without internal battery ensures a long life. The A118-c is operable in much higher temperature ranges completely bypassing the problems inherent to battery use.

Specifications:
Chipset:Novatek NT96650 & Aptina Aro330 6G Lens
Sensor: 3M CMOS sensor
Screen size: 1.5″ HD LCD
Video resolution: 1920x1080P HD at 30fps and 1280x720P at 60fps
Audio: Build-in microphone
Motion Detection: Yes
Shutter：Electronic shutter
Ports: USB, AV in/out, GPS outlet and Micro SD card slot
Dimensions:72mmx52mmx43mm

Package includes:
AUTO-VOX B40-C Dash camera
USB cable
In-car charging cable
Brackets and Adhesive Mount System
User Manual

Product Features

• AUTO-VOX Premium Car Recorder with 140°F heat resistant uses a capacitor as the power instead of internal battery to prevent the camera overheating.
• Novatek NT9950 Chipset & Aptina Ar0330 Lens used in the covert Mini Camera; Full 1080P HD videos at a smooth 30FPS or 720P at 60 FPS with average night vision.
• AUTO-VOX B40-C dashcam’s seamless loop recording and the build-in G-sensor detecting impact & auto locking event videos allow you not to miss any important moment.
• Superior 170°viewing angel gives your recording a panoramic quality that encompasses both sides of the road and its surroundings.
• Compact and contoured design meant for disguise will not block your view. The all-black exterior of the A118-C seamlessly camouflages itself with the interior of your vehicle.