I got this to replace my BluJax, because the BluJax wouldn't come on automatically when the car came on which was super annoying to have to reach into the console to turn it on. "You had one job..."

This has better sound than the BluJax, and the bass is huge. I had my car's bass set to 10 with the BluJax, and I had to turn it down to 6 with the BTC450. I like alot of bass but I don't want to annoy others outside the car. And sure enough it automatically connects as soon as I turn the car on.

I can say "OK Google" and the BTC mic picks up the command, so I can leave my phone in my pocket if I want (another reason I wanted this). I haven't used it for phone calls yet bcs that's not why I got it, but nice to have the option. Anyone who doesn't want it for that could just turn off the phone profile in the bluetooth settings for the BTC in their phone. The play/pause and forward/back buttons work great on my Pandora on Android (Pixel XL) out of the box.

I will update if I find any downsides but so far this seems like a home run.

I have gone through countless Bluetooth devices to make my car smarter and safer. Each one has ALWAYS had a problem. Bad sound, too bulky, crappy sticking and/or mounting, people unable to hear me. This has NONE OF THOSE PROBLEMS. Plus, on top of all that...I don't know about you but it feels like everything I've ever tried has been complicated in the way it has too many buttons that are so hard to keep track of that you wind up taking your eyes off the road to play around with it (which defeats its purpose) or giving up using it all together. But this is SO SIMPLE. It has very few buttons but they do it all. Anyone who sees me use it wants it. Many have ordered it within days of watching mine work. I am still sort of in shock that after all of these years, and hundreds of dollars wasted, I finally found the perfect device that turns my car into a great working smart vehicle!!

Love this product. I'm disappointed in myself for not picking this up sooner. I use it in my 2008 Acura MDX. I have the Entertainment package - which really just means I have the DVD Player. Ironically, with this package you don't get an auxillary 3.5mm port in the center console. Instead you get RCA ports in the back of the center console. I had to run an RCA to 3.5mm cable from the back of the center console under my seat. From the 3.5mm male cable I have a 3.5mm coupler, then I plug this bluetooth unit into that. This is superior to the Acura HFL built into the vehicle as it allows not only phone calls but music.

What do I like?
- Automatically connects - no need to pair after the initial pair. Within 5 seconds of the car starting my phone and audio system are paired automatically
- Audio quality of music/podcasts is fantastic. Sounds like XM radio, very clear and crisp. Even sounds good when loud.
- Voice quality during phone calls is good. Never had a problem with someone saying they cannot hear me.
- I can charge my phone while using this device.
- if I press the button once, I'll automatically be taken to my last audio use. If I used Amazon music, or podcast, or spotify, Apple Music, etc. earlier that day (in or out of my car) it will take me back to that album or podcast and continue where I left off.

What do I not like?
- Slight delay in clicking the button and Siri being available to hear me. Maybe 1 or 2 seconds. But once you get accustomed to it, not a big deal.
Not a big enough complaint to reduce stars by 1. One of the best values I've found on Amazon. Why didn't I buy this a year ago? Oh! This would work with a tape deck using the magnetic tape to 3.5mm cable. You'd just need a 3.5mm female to 3.5mm female coupler as I had to use for my RCA to 3.5mm male cord. Thereby allowing your 10 or 20 year-old car to have bluetooth.

Ive had this about 18 months and the first several months it worked perfectly. After a few months it would no longer automatically connect to my phone when turning the car on. Initially I was then able to just press the button when I got in and turned on the car and it would then connect to my phone. A few months later that stopped working to connect my phone to it so i had to start doing it manually. Not really a big deal, but it was nice not to have to go into my phone's bluetooth settings and force the connection everytime i got in the car. I dont recall exactly when it was, but somewhere around the 8 month mark the audio out to the left speakers in my car began cutting in and out or just being much lower in volume compared to the right (balance in the car stereo was equal). Sound quality has always been very good with it. Call quality is OK as the microphone doesnt seem to work as well as my phone's mic, so i usually end up just doing speaker on my phone rather than calls through bluetooth to my car speakers, but I was more-so buying for music/audio purposes than calling purposes, so this didnt bother me at all. Overall, I am satisfied enough, but am going to try another brand for my next one.

First off I am very satisfied with this! I am a producer and audio engineer so having the highest possible sound quality in my car is very important to me so I was hesitant to buy this because every Bluetooth device I heard sounded awful. This had great ratings so I took a chance and I couldn't be happier.

Important note: you may need to get a device called a ground loop isolator. If you ever get any kind of buzz in your car (usually happens when your playing audio from your phone and charging it at the same time) then you'll definitely need one of these. They aren't expensive either.

The device itself lives up to all the hype and there are plenty of reviews out there so I won't go into too much detail other than that. Though I will say it does boost the low end bass a little bit which is actually kind of nice and it is not a lot. Most people probably won't even notice but it's just a subtle boost which in most situations will probably be a good thing. And if it isn't a good thing you can always turn down the bass in your cars audio settings.

The call quality was a little lacking in my car compared to just plugging my phone in to the aux and talking through that using the phones microphone. But that being said its not terrible. I did a test call and they could hear me just fine and it was no problem. It pretty much sounds like every other cars Bluetooth phone call.

Overall excellent product and I highly recommend it to anyone!