How to Pair Catitru BX17 Earbuds: A Complete Guide to Fit, Controls & Sound

So, you’ve just unboxed a new pair of wireless sport earbuds, like the Catitru BX17. You’re looking at the promises on the box—80 hours of playtime, IPX7 waterproofing, and secure earhooks for running—and you’re ready to go.

But let’s be honest. Sometimes the “fast pairing” isn’t so fast. The controls can feel like learning a new language. And what exactly is “ENC”?

If you’re feeling a bit lost, you are in the right place. I’m here to be your guide. We’re not going to review features; we’re going to master them. Think of this as the missing manual to help you get from the box to your first “worry-free” workout.

Part 1: The First Connection (How to Pair Your BX17)

This is the number one hurdle for most new earbud owners, and the search data shows queries like “how to pair Catitru BX17” are common. It’s usually a simple fix.

Wireless earbuds work by creating a Bluetooth “handshake” with your phone. Sometimes this handshake gets confused, especially if the earbuds have tried to connect to another device first or if only one bud powers on.

Let’s do this right the first time.

Your First-Time Pairing Guide

1. Start with the Case: Keep both earbuds inside the charging case and close the lid. Make sure the case has some charge (the LED display should light up).
2. Activate Bluetooth: On your phone or device, go to Bluetooth settings and make sure Bluetooth is On.
3. Initiate Pairing: Open the charging case lid. The built-in hall switch in the BX17 should automatically power on the earbuds and put them into pairing mode. You don’t need to take them out yet.
4. Find the Device: Look at your phone’s Bluetooth menu. After a few seconds, you should see “BX17” appear in the list of available devices.
5. Confirm the Handshake: Tap on “BX17” to connect. You might get a pop-up asking to confirm the pairing. Accept it.

You should now be connected. Take the earbuds out of the case, and they should automatically link to each other (known as TWS, or True Wireless Stereo) and play your audio.

Troubleshooting: “My Earbuds Won’t Pair!”

If it doesn’t work, or if only one earbud connects, don’t panic. Try this “reset” process:

• Forget the Device: On your phone’s Bluetooth menu, find “BX17,” tap the ‘i’ or gear icon, and select “Forget this Device” or “Unpair.”
• Reboot Your Phone’s Bluetooth: Turn your phone’s Bluetooth off and then back on.
• Reset the Earbuds: Place both earbuds back in the charging case. Close the lid, wait 10 seconds, and then open it again. This forces them to reset their connection.
• Try Again: Re-attempt the “First-Time Pairing Guide” steps above.

Part 2: Nailing the “Worry-Free” Fit

This is critical. A poor fit is the number one reason people lose earbuds, complain about comfort, or (most commonly) feel the sound is “tinny” and has no bass.

Your BX17 earbuds come with earhooks and three sizes of silicone ear tips (Small, Medium, Large). The goal is to create a perfect acoustic seal.

The Fit Test

1. Start with the Earhook: Place the main body of the earbud in your ear and loop the soft, elastic hook over the top of your ear. It should feel secure but not pinch.
2. Test the Tip (The Seal): The medium tip is usually pre-installed. Gently push the earbud into your ear canal.
   • If it feels loose or the bass sounds weak: You need a larger tip.
   • If it feels uncomfortably tight or painful: You need a smaller tip.
3. Confirm the Seal: When you have the right fit, two things will happen. First, the earbud will feel locked in place—you should be able to shake your head without it budging. Second, the outside world will sound muffled, and your music will suddenly sound rich and full, with proper bass.

This is what reviewer Carolyn Robinson meant by “Absolutely worry free. Not going to fall out.” That security comes from finding your perfect tip and hook combination.

Part 3: Mastering the Controls (No Phone Needed)

Active users can’t be fumbling for their phones. The BX17 uses physical button controls instead of touch-sensitive ones. This is a huge advantage during a workout, as sweat or gloves won’t accidentally trigger commands.

Each earbud has a button. While the exact commands can vary, the system generally works like this:

• Play/Pause: Single press on (L) or (R) earbud.
• Volume Down: Double-press on the (L) earbud.
• Volume Up: Double-press on the (R) earbud.
• Next Track: Triple-press on the (R) earbud.
• Previous Track: Triple-press on the (L) earbud.
• Answer/End Call: Single press on (L) or (R) during a call.
• Activate Voice Assistant (Siri/Google): Press and hold for 2-3 seconds.

Mentor Tip: Practice these controls before your run. It takes five minutes and builds muscle memory, so you’re not fumbling with it mid-sprint.

Part 4: Your Sound (Music & Call Clarity)

Let’s clear up the two biggest audio features: the 12mm drivers and the “ENC Noise Cancelling Mic.”

For Your Music: 12mm Drivers

Inside each earbud is a 12mm speaker driver. In simple terms, this is a relatively large driver for an earbud, which allows it to move more air. When paired with the good seal we achieved in Part 2, this is what gives you that strong bass and full stereo sound the product page talks about. If your music sounds weak, check your fit first!

For Your Calls: What is ENC?

This is a common point of confusion. You might see “Noise Cancelling” and think it’s for you.

• Active Noise Cancellation (ANC): This is not what the BX17 has. ANC uses microphones to listen to the outside world and create an anti-sound wave to silence it for you, the listener.
• Environmental Noise Cancellation (ENC): This is what the BX17 has. ENC is purely for your microphone. It uses its mics to listen to your voice and the sounds around you (wind, traffic, gym music). A smart chip then subtracts the background noise, so the person you’re calling hears your voice clearly, not the chaos around you.

Troubleshooting: “My Microphone Isn’t Working!”

If people can’t hear you on a call, it’s almost never a broken mic. It’s usually a settings issue.

1. Check the Source: When you’re on a call, look at your phone screen. Tap the “Audio Source” button (it might look like a speaker or Bluetooth symbol).
2. Select the Right Mic: Your phone may still be trying to use its internal microphone. Make sure “BX17” is selected as the audio source.
3. Check App Permissions: If you’re using an app like Zoom or Teams, make sure the app has permission to access your Bluetooth microphone in your phone’s settings.

Part 5: The Power User’s Guide (Battery & Care)

Finally, let’s talk endurance.

The 80-Hour Battery Explained

That “80-Hour Playback” is a total number. It’s not one continuous charge. * The Earbuds: A single full charge gives you about 15 hours of listening time. * The Case: The charging case holds the other 65+ hours. When your earbuds run low, you put them back in the case, and the case recharges them.

The LED Power Display is your fuel gauge. The number shows you how much “juice” is left in the case. The four small bars show the charge level of the individual earbuds.

Mentor Tip: Don’t let the case die. My rule is simple: if the case’s LED display drops below 25%, charge the full thing overnight with its Type-C cable.

What IPX7 Waterproof Really Means

IPX7 is a high waterproof rating. It means the earbuds can be submerged in 1 meter of water for 30 minutes.

• What it’s for: Resisting heavy sweat and running in the rain. You are completely safe during intense workouts.
• What it’s not for: Swimming. The rating doesn’t cover the water pressure from swim strokes, and Bluetooth doesn’t transmit well underwater.
• Care Tip: After a very sweaty workout, it’s good practice to wipe the earbuds (especially the metal charging contacts) with a dry cloth before placing them back in the charging case. This prevents any corrosion and ensures they charge properly every time.

You’re all set. The best technology is the kind that disappears, letting you focus on your activity. By mastering these setup steps, you’ve turned your new earbuds from a piece of tech into a reliable partner for your active life. Enjoy the run.