Huawei Mate 9 Quick Start Manual page 6

Your phone at a glance
Before you start, let's take a look at your new phone.
Press and hold the power button to turn your phone on
or off.
To forcibly restart your phone, press and hold the
power button until your phone vibrates.
Headset connector
Laser sensor
Microphone
Dual-lens
camera
Dual-tone
flash
fingerprint
scanner
Earpiece
Microphone
2
Infrared sensor
Status indicator
Front camera
Light sensor
Volume button
Power button
USB-C port