Samsung GT-I9305 Quick Start Manual page 8

Rear view
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Number Function
12 Microphone
13 GPS antenna
14 Flash
15 Power/Reset/Lock key
16 Rear camera lens
17 Headset jack
18 Speaker
1. Active only when you use the speakerphone feature or
record videos.
2. Do not touch or cover the area around the antenna with
your hands or other objects while using the GPS functions.
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