How to Pair Koss BT115i Bluetooth with Any Device

By Koss Stereophones | Published: 2026-10-27

Category: How-to Guides

Learn how to pair your Koss BT115i wireless earbuds with any phone, tablet, or computer. Step-by-step instructions, common mistakes, and troubleshooting tips.

Quick Answer

To pair your Koss BT115i earbuds, put them in pairing mode by holding the power button until the LED flashes red and blue, then select "BT115i" from your device's Bluetooth menu.

What You Need Before Starting

The Koss BT115i uses Bluetooth 5.0, which is backward compatible with most phones, tablets, and computers. Make sure your device has Bluetooth enabled and is within about 33 feet (10 meters) of the earbuds.

The earbuds come with a USB-C charging cable and three sizes of silicone ear cushions. For the best fit and sound isolation, choose the size that seals comfortably in your ear.

Common Pairing Issues and Fixes

If your device doesn't find the BT115i, the earbuds may already be connected to another device. Disconnect them from that device first, or turn off Bluetooth on the other device.

If pairing fails repeatedly, reset the earbuds by placing them in the charging case, closing the lid, waiting 10 seconds, then taking them out and trying again.

Step-by-Step Pairing Guide

Step 1: Charge the earbuds: Connect the BT115i to a USB-C charger and let them charge for at least 10 minutes if the battery is low. A full charge takes about 2 hours. A low battery can prevent the earbuds from entering pairing mode. Always start with a charged unit.
Step 2: Enter pairing mode: Press and hold the multifunction button (the center button on the inline remote) for about 5 seconds until the LED indicator flashes red and blue alternately. This means the earbuds are discoverable. If the LED only flashes red or blue, you are not in pairing mode. Release and hold again until both colors flash.
Step 3: Open Bluetooth settings on your device: On your phone, tablet, or computer, go to Settings > Bluetooth and make sure Bluetooth is turned on. Wait for the device to scan for available accessories. If your device has previously paired with other Bluetooth audio devices, turn off their Bluetooth to avoid interference.
Step 4: Select "BT115i" from the list: When "BT115i" appears in the list of available devices, tap or click it. You may hear a tone or see a confirmation message. The LED will stop flashing and stay solid blue when connected. If you see "BT115i" but it doesn't connect, try selecting "Forget This Device" and repeat steps 2–4.
Step 5: Test the connection: Play audio from your device. You should hear sound through the earbuds. Use the inline remote to adjust volume or pause/play. Make a test call to verify the microphone works. If audio cuts out or is distorted, move your device closer to the earbuds or check for wireless interference from other electronics.

About the Koss BT115i

BT115i Bluetooth®: The Koss BT115i offers 18+ hours of battery life with USB-C charging and includes an in-line microphone and remote for calls and media control. You can listen all day without recharging, and the built-in remote lets you adjust volume, play/pause, and answer calls without touching your phone.
BT115i Bluetooth®