1.Microphone: used for noise cancellation and stereo recording.

2.3.5mm Headset jack: allows you to plug in headphones.

3.Volume keys: allow you to adjust the ringer volume while in standby mode or adjust the voice volume during a call. When receiving an incoming call, briefly

press down either volume key () to mute the ring tone. Adjusts text size when reading a message.

4.Microphone: allows other callers to hear you when you are speaking to them. It is also used for the Speakerphone.

5.Power/Accessory Interface connector: allows you to connect a Travel Charger or other optional accessories such as a USB/data cable or a hands-free headset for convenient, hands-free conversations.

6.Power/Lock key: ( ) lets you power your phone on and off. Also allows you to lock or unlock the touch screen. For more information on locking your phone, see “Locking and Unlocking the Phone” on page 34.

7.Infared sensor: allows you to use your phone as a tv remote for select TVs. For more information, refer to “WatchON” on page 205.

Rear View of Your Phone

1

3

2

1.Camera lens: is used to take pictures and shoot videos.

2.External speaker: allows you to hear when the Speakerphone is turned on.

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Samsung SGH-I537_UM user manual Rear View of Your Phone, Microphone used for noise cancellation and stereo recording