Sennheiser MOMENTUM True Wireless 3 Noise-Canceling In-Ear Headphones (Graphite) - Manual (Page 12)

Getting started
12 | MOMENTUM True Wireless 3
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 con-
necting them to a USB power source once.
▷
Insert the earbuds into the charging case.
▷
Close the lid of the charging case.
▷
Connect the USB-C cable to the charging case and to a USB
power source (> 16).
▷
Charge the rechargeable batteries for at least 30 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.
USB-C
USB-A
30s
1 2