Back, Top, and Bottom ViewThe following items can be found on the back, the top, andthe bottom of your phone.1. IR transmitter: Used to emit infrared signals used forcontrolling external devices.2. 3.5mm headset jack: Plug in for accessories.3. Power/Lock: Press and hold the Power/Lock buttonuntil the phone switches on. Also be use to lock orunlock the touch screen. For more information onlocking your phone, see “Locking and Unlocking your2913