Getting Started - Sennheiser CX 400BT Series Instruction Manual

Getting started

Getting started
1. Waking up the earbuds and the charging case
and charging the rechargeable batteries
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Upon delivery, the rechargeable batteries of the earbuds and the
charging case are in sleep mode and have to be woken up by con-
necting them to a power source once.
▷
Insert the earbuds into the charging case.
▷
Connect the USB-C cable to the charging case and to a USB
power source (> 14).
The earbuds and the charging case are woken up and the
rechargeable batteries are being charged. The earbuds are now
ready for use.
Alternatively:
▷
Press and hold the LED button on the charging case for 3 sec-
onds.
The earbuds and the charging case are woken up and can now be
used.
2. Selecting suitable ear adapters for optimum
fit of the earbuds
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The perceived sound quality including bass performance and the
best possible noise cancellation of the earphones depends to a large
extent on the correct fit of the earbuds in the ear.
▷
Test which ear adapter size gives you the best sound quality and
the best wearing comfort.
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XS S
CX 400BT True Wireless | 11
USB-C
USB-A
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