66 Audio BTS Pro vs Jabra Elite Sport (2017)

The BTS Pro is quite robust and can withstand some minor splashes of sweat or rain as these are sweat-proof. They are not completely water-proof though, so you should not get them soaking wet.

There is good detail in the highs and the mids can also be heard clearly with very little muddiness. The lower frequencies are boosted, resulting in a good level of depth and power to each bass thump.

The BTS Pro ear cups sit on the ears with hooks keeping them in place. The flexible connecting band provides good clamping force and can adjust to your head size with continued use. Combined with cushioning on the cups, these are comfortable to wear and will stay in place.

Bluetooth connectivity allows the BTS Pro to connect with smartphones and compatible music players wirelessly, so cables won't be an issue.

66 Audio's Motion Control iOS App gives users added functionality, including EQ control and presets selection, battery status indicator, and even headphone position tracking. These features can improve the listening experience and also minimize the chances of you losing these headphones.

With up to 40 hours of playback time at full charge, it's more than enough for most listening sessions. You won't have to charge these frequently.

A hard shell carrying case is included, which can protect the headphones from minor impact and also make transport much easier. The case also has good aesthetics.

They are easy to bring on the go as the ear cups can be folded into the headband. This further reduces the already slim and compact size, making them easy to chuck into a bag when on the go.

The right ear cup of the BTS Pro features buttons for controlling headphone features. You can play/pause tracks, increase/decrease volume as well as answer/end calls by pressing the corresponding buttons, negating the need to pull out your phone to do so.

You do not need to take the BTS Pro off in order to answer incoming calls. There is a built-in microphone which allows you to easily take or make calls in the middle of your run or workout.

In this mode, the mic picks up audio from your surroundings. You can hear sound from around you mixed in with your music.

There is an integrated heart rate monitor which can connect to Jabra's fitness companion app. This combination should make it very easy for you to see fitness related data.

The Elite Sport sounds quite balanced with no harshness or muddiness. The highs are clear and deliver good detail. Mids sound natural and rich, while the bass is tight and controlled instead of bloated. With these headphones, you will get decent punch from the usually bass-centric workout tracks, yet you will still be able to enjoy a refined sound when listening to more mellow or instrument focused music.

These resist sweat and other liquids as they are IP67 rated. They can be submerged in water without getting damaged as long as the water is not too deep and they are not submerged for a long time.

You can attach wing tips to the earpieces, which allow for better in-ear fit for reduced chances of the earpieces falling off. The tips are quite soft so they will not have too much of a negative impact on comfort.

Each earpiece has two buttons which you can use to control playback or to answer/end calls.

The charging case has an internal battery that can add up to 6 hours to the Elite Sport's battery life.

There are microphones integrated in the ear pieces so hands free calls are possible. Voice quality from the mic is actually pretty good.

You get a charging case, 3 pairs of silicone ear tips in different sizes, 3 pairs of premium Comply ear tips in different sizes, 3 wing tips in different sizes as well as a charging cable.