Bose SoundSport In Ear vs 66 Audio BTS Pro

Bass output is very good. It has good power yet at the same time is fast and punchy. It does not bloat the sound at all. The highs and mids are able to deliver a good level of detail that makes the sound quite lively. These will work best for bassy tracks, though rock, jazz, classical and pop will still sound enjoyable.

In stock form, these headphones have a relatively short cable. However, Bose includes an extension cable for extra reach. This can help to minimize the wire length that you have to deal with when going for a run or exercising.

The earbuds can resist small splashes of liquid or sweat. The hydrophobic cloth material wrapped around the headphones helps to minimize issues relating to moisture.

The specially designed Stay Hear ear tips have a wing design which helps to add grip to the earpieces when worn. This helps to ensure that the headphones will not easily get dislodged when on the move.

The ear tips are very soft and flexible. Combined with the ear bud design that does not jam into your ear canal, these are a joy to use in terms of comfort, even for extended periods.

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.