K3 Pro - User Guide - First-time setup
Congratulations on receiving your new pair of K3 Pro! Use this guide to learn about pairing K3 Pro with your preferred device and charging the battery.
What's included in the box
- K3 Pro headphones
- USB-C cable
- AUX-cable
- Soft shell case
- Owners manual
- Warnings Folder
Before getting started
The headphones will likely have some existing battery charge, however it is recommended to fully charge K3 Pro before using it for the first time.
Turning K3 Pro on or off
Press (hold) the button for 3 seconds until the white light is blinking and you hear "On".
If you want to turn off your K3 Pro then press (hold) the button for six seconds until the white light turns off and you hear "Off".
Pairing with a device
Hold the button on your K3 Pro for 3 seconds to turn it on. The white flash means that your headphones are now turned on and ready to pair.
Open the Bluetooth settings on your device and wait for K3 Pro and the device to locate each other, then select Sudio K3 Pro when it appears in the list. Once connected, you will hear "Connected".
Charging the battery
K3 Pro has one built-in battery in the headphones.
K3 Pro is charged with a USB-C cable. It is recommended to use the USB-C cable that's included in the package, but the headphones may be compatible with third-party USB-C cables as well.
K3 Pro - User guide - Connectivity & Pairing
Pairing K3 Pro with a device
- Hold the button on your K3 Pro for 3 seconds. The white flash means that your headphones are now turned on and ready to pair.
- Go into the Bluetooth settings on your device.
- For iOS (iPhone), go to the Settings app and select Bluetooth.
- For Android, go to the Settings app, then select Connections followed by Bluetooth.
- For Windows 10, click on the Start button, select Settings followed by Devices, and then Bluetooth and other devices.
- For macOS, go to the System Preferences app and select Bluetooth.
- Locate and select Sudio K3 Pro in the Bluetooth list on your device.
- Your Sudio K3 Pro is now paired with your device.
- To turn off your headphones, hold the middle button for 5 seconds. The white light will turn off, this means the earphones are now turned off.
Device compatibility
K3 Pro uses Bluetooth version 6.0 which is compatible with a wide range of Bluetooth devices. The paired device does not need to be the same version, but similar versions are more likely to maintain a strong connection.
Signal interference
Some wireless devices may interfere with each others' signals, such as WiFi-routers, smartwatches, other Bluetooth devices, etc. If they operate within the same frequency, you may experience interference such as dropped sound and glitching. The easiest way to locate the cause of interference is by maintaining one connection between devices at the same time or taking your K3 Pro and connected device outdoors to see if the interference clears.
K3 Pro can be up to a maximum of 10 meters (49 ft) from the paired device, but the connection may break if they are blocked by walls or similar objects.
K3 Pro - User guide - Button controls
K3 Pro has a button and a dial that allow you to control certain features on your paired device.
Music/video playback
- Press once on the dial to pause/play music.
- Press twice on the dial to go to the next song.
- Press three times on the dial to go back to the previous song.
- Twist the dial clockwise to turn up the volume.
- Twist the dial counter clockwise to turn down the volume.
Active Noise Cancellation (ANC), Voice Assistant and
Incoming phone calls
- Press (hold) the button for 2 seconds after the headphone have turned on to turn on the ANC.
- Press (hold) the button for 2 seconds to turn off the ANC.
- Press the button twice to turn on the Voice Assistant.
- Press once on the dial to accept a phone call
- Press (hold) the dial for 2 seconds to hang up or to reject an incoming phone call
Power
- Press (hold) the button for 3 seconds until the white light is blinking to power on your K3 Pro.
- Press (hold) the button for 5 seconds until the light turns off to power off your K3 Pro.
K3 Pro - User guide - Factory reset
If K3 Pro starts behaving unexpectedly, or if you wish to remove the connection between K3 Pro and the connected device, you can perform a factory reset to restore your Sudio K3 Pro to its original settings. This will reset the connection between your paired devices.
- Turn off the K3 Pro by pressing (holding) the button for 6 seconds until you hear "Off".
- Press (hold) on the button again for 8 seconds until the light blinks white twice.
- The reset is now complete.
When you hear 🔈 Ready to pair, proceed to pair K3 Pro with your Bluetooth device.
K3 Pro - User guide - Battery levels and management
K3 Pro has one built-in battery in the headphones.
Charging and play times
The headphones can be used for approximately 65 hours on one charge (32 hours with the ANC on).
The battery takes approximately 120 minutes to fully charge. K3 Pro does not support quick charge.
Charging methods
K3 Pro can be charged with a USB-C cable included in the packaging.
We recommend using the Sudio cable included in the package, however, other third-party USB-C cables may be compatible too.
Battery level indicators
Headphones (no cable inserted)
- Amber light - 0-25% battery left
- White light - 26-100% battery left
Battery life status will be indicated on your smartphone for iOS and most Android devices. Since phone manufacturers have various Android devices that work differently, you can also download various battery apps on the Google Play Store.
Headphones (with cable inserted and charging)
- Amber light - 0-99% battery charged
- White fixed light - 100% battery charged
K3 Pro - User guide - Download PDF version