66 Audio BTS Pro vs Apple Airpods

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.

These come in at only 4 grams per earpiece. The absence of a connecting cable further minimizes the weight.

There is no band or cable connecting the earpieces. You won't have to deal with the noise caused by a cable rubbing against your clothes or body.

These headphones do produce some low-end, but the bass does not come with a lot of power and oomph. The highs and mids are good though. They are not too forward and present a nice level of clarity. Most genres of music will sound good with these, though bass heavy tracks like dance, hip-hop, EDM and the like may sound lacking.

Thanks to the proprietary connectivity chip used, the Airpods sync to Apple devices without a hitch. This is a noticeable advantage over many third-party wireless headphones where you might need to go through a lot of steps just to get them synced properly.

The signal cuts-off only on very few occasions. Generally, you should have a stable wireless listening experience. Also, there is no noticeable lag between what is happening on screen and when you get to hear the sound from these headphones when watching videos.

Voices sound clear and full so conversations will not be an issue.