Understanding Your Phone 15Side Views Features1. Accessory Hook: Connect optional accessories, such ascarrying straps, to the phone.2. Volume Key: From a Home screen, press to adjust RingerVolume. During calls or music playback, press to adjustvolume. Press to mute the ringtone of an incoming call.3. USB Power/Accessory Port: Plug in a USB cable forcharging or to sync music and files.4. microSD (Memory Card) Slot: Lets you install and removeoptional microSD Memory Card for additional image/photostorage and for music storage.5. Power/Lock key: Press and hold to power your phone on oroff. With the phone on, press to lock your phone and blankor waken the display. With the phone on, press and hold,then select Silent mode, Airplane mode, or Power off.6. Headset/Headphone/TTY Jack: Connect a wired handsfreeheadset, stereo headphones, or a TTY device.145236