Owner reviews: We eliminated anything with an overwhelming number of negative owner reviews, or any model that had accumulated a suspicious number of reviews over a short period of time.With that in mind, we limited our most recent sweep to brands that have a reputation for good quality and service and that offer a reliable warranty. Amazon sells hundreds of no-name brands that offer their own take on these products. Reputation: These kits are cheap and plentiful.We didn’t consider any kit that didn’t include at least one USB-charging port that you can use while the transmitter is plugged in-if you’re using your phone for streaming and conversations, it stands to reason that you will want to charge it, too.

Power: Most kits rely on USB adapters to plug into your car’s 12 V accessory power (aka “cigarette lighter”) outlet.

Ease of use: We specifically looked for models that automatically reconnect with a paired phone when you start the car, and for those with clearly labeled buttons and other controls.We didn’t consider any kit that lacked either of these features. Music and phone-call functionality: If you want to replicate a native Bluetooth experience, you need a model that can play music as well as make phone calls.(Because Bluetooth speakerphones are designed specifically for phone calls, with those models we focused less on music capabilities and more on sound quality for calls.) There’s no point in having the ability to listen to music and podcasts from your phone or to take phone calls unless you have clear, functional, and enjoyable sound-both for listening and for speaking. Audio quality: This is by far the most important factor in purchasing a Bluetooth car kit.

Car stereo with bluetooth handsfree