The power cell 8 is just what I needed. Cables and plugs were just right for my Viofo A329. Easy set up and install.

Very easy to splice to shorten cables and have a clean install

This device is GREAT ! In my experience, this device will only work with a T-Mobile "Prepaid" SIM card, or a BlackVue SIM card in North America. I am unaware if an AT&T SIM card will work with this device. Save yourself some trouble and do your research to see which SIM cards will work with your device, depending upon your location. I followed the cloud connection steps in the BV App, which told me that my setup was complete. However, if the cloud icon does not turn blue in the BV app next to the camera name, then your camera is not connected to the cloud. My only option was to use the BlackVue Sim card and connect to the BlackVue cloud. The front camera is larger than I expected. Installation is pretty straightforward. I opted to install the BlackVue battery pack under the drivers seat. Search YouTube for installation guides for your specific vehicle. You may need to remove the vehicle camera shroud behind the rearview mirror in order to fish the wires behind the front headliner. The cameras work very well. I had to adjust the settings in order to obtain optimal performance. BBMC stands behind their products. Troubleshoot with them first if you have a problem, then contact BlackVue Warranty returns are pretty easy. Be sure to ask for a return label if shipping to Canada. You will have to pay for the return label which includes customs forms. This may have changed recently, so be sure to check with BBMC before you return anything. They have recently added US return locations, so you don't have the hassle of requesting a label from BBMC and dealing with U.S. Customs.

Plug and play, hardest thing was hiding the cable

Easy install! It works as it should.

This worked perfectly for hard wiring my dash cam. Saved tons of time and money. Also made a job that I would have never attempted to do on my own definitely able to do in a couple of hours. If you’re hard wiring, you must use these. A+++

Works well

Good

I bought this after reading the product description, and it lives up to the hype. The water-repellent spray is the real hero—it works at even lower speeds than advertised. My windows are streak-free and clear.

It was expensive compared to the basic cards form other vendors, but it's backed by blackboxmycar so I am confident with it.

purchased a A329 as an upgrade to a A129 that the main camera quit on. The layout is basically identical to the HK3. I took the old out and placed the new in with no hiccups. Having the parking ability for my cam is super important to me so not having this was not an option. It's the typical high quality from Viofo.

Bought this alongside my Thinkware dash cam, and it’s just as premium. Easy to use and makes such a difference for night driving. Visibility is amazing, even on foggy nights. Great product as always!

Hands down the best cleaner I’ve tried! The hydrophobic product keeps rain out of vision even at highway speed. The inclued sponge and microfiber towel are good for the job—no scratches. Would rebuy in a heartbeat.

I received this free as a promo when I bought my dash cam from BlackboxMyCar. It’s amazing—leaved ZERO streaks! My wife even borrowed it for her car. A great add-on and makes driving so much clearer in rainy weather.

Very durable and long lasting battery.