User's Manual

7
Getting Ready
⑭ bBACK key
Returns to the previous screen.
⑮ vVolume key
⑯ Speaker
Emits ring tones, alarm tones, music, movie sounds, etc.
⑰ Camera lens
⑱ Mobile light
⑲ Infrared port
⑳ Charging terminals
Used when charging the PTL21 with the desktop holder.
󰼼 Battery pack/cover
󰽇 microSD memory card slot
󰽈 au IC-Card
󰽉 Lock slider
① External connection jack cover
② External connection jack
Use it to connect the PTL21 to the common AC adapter 03 (sold
separately), the microUSB cable 01 (sold separately), the 18pin-
microUSB conversion adapter 01 (sold separately), the microUSB stereo
earphones conversion adapter 01 (sold separately), etc.
③ Strap eyelet
④ pPower key
Turns on/off the power, and sets/disables sleep mode.
⑤ Built-in antenna
Do not cover the built-in antenna with your hand when you call,
transfer 3G data, use Wi-Fi, Bluetooth
®
or retrieve GPS information.
⑥ Charging indicator
Illuminates in red while charging.
⑦ Incoming indicator
Illuminates when receiving a call.
⑧ Earpiece
Emits the voice of the other party during a call.
⑨ Proximity sensor/optical sensor
The proximity sensor prevents operating the touch panel
incorrectly during a call. The light sensor detects the ambient
brightness and automatically adjusts the brightness of display.
⑩ Display
⑪ Microphone
Transmits your voice to the other party during a call. It is also used
for recording sounds.
Take care not to cover the microphone with your fingers when
making a call or recording sound.
⑫ mMENU key
Displays the option menu.
⑬ hHOME key
Use it to display the Home screen, etc.