Getting started
1. Waking up the earbuds and the charging case and charging the rechargeable batteries
Upon delivery, the rechargeable batteries of the earbuds and the charging case are in sleep mode and have to be woken up by connecting them to a USB power source once.
1.Insert the earbuds into the charging case and close the lid of the charging case.
2.Connect the USB-C cable to the charging case.
3.Connect the cable to a USB power source (> Charging the rechargeable batteries using the USB cable) and charge the rechargeable batteries for at least 15 seconds.
The earbuds and the charging case are woken up and the rechargeable batteries are being charged. The earbuds are now ready for use.
 | Waking up the rechargeable batteries is only possible when a USB cable is connected to the charging case. The wireless charging function cannot be used to wake up the rechargeable batteries. |
| We recommend charging the earbuds and the charging case for a complete charging cycle without interruption before using for the first time. |
2. Selecting suitable ear tips for optimum fit of the earbuds in the ears
The perceived sound quality including bass performance, the best possible noise cancellation, the best voice quality for phone calls and a secure hold of the earbuds in the ears depends to a large extent on the correct fit of the earbuds. Therefore, you can choose between ear tips in different sizes.
You can choose between 4 different ear tips in size XS, S, M and L (> Selecting suitable ear tips for optimum fit of the earbuds).
Test which ear tip size gives you the best sound quality and the best wearing comfort.
Assign the right earbud to your right ear and the left earbud to your left ear.
Insert the earbuds at a slight angle into the ears and twist them slightly into the ear canal so that they sit comfortably and snugly in the ear canal and auricle (> Inserting the earbuds into the ears).
| You can use the Fit Test function in the Smart Control app to test the fit of the earbuds in your ears. |
3. Connecting the earbuds to a Bluetooth device
When you switch on the earbuds for the first time after initial charging, they automatically switch to Bluetooth pairing mode. If the earbuds have not yet been paired with any Bluetooth device (the pairing list is empty), pairing mode remains permanently activated.
Connect the earbuds to your smartphone via Bluetooth (> Pairing the earbuds with a Bluetooth device).
4. Installing the Smart Control app on your smartphone
The Sennheiser Smart Control app allows you to use all functions and settings of the earbuds and to e.g. adjust the sound to your liking using the equalizer (> Installing the Smart Control app).
–Google Play Store: click
–Apple App Store: click
5. Connecting additional Bluetooth devices
If desired, connect the earbuds to additional devices via Bluetooth (> Pairing the earbuds with a Bluetooth device).
The earbuds can save the connection profiles of up to six Bluetooth devices with which they have been paired. Audio playback is only possible from one device at a time.
Using the Smart Control app (“Connections”), you can view the list of paired devices and selectively connect and disconnect devices (> Switching the connection to paired Bluetooth devices/“Connections”).