Stay connected wherever you roam and keep yourself on track for your next meeting with the GPS-enabled BlackBerry Pearl 8110 from AT&T, which is compatible with the new AT&T Navigator turn-by-turn driving directions. You'll also enjoy push-to-talk (PTT) capability--an AT&T exclusive--as well as music downloads from AT&T Mobile Music. The ________ weighs ___ ounces and measures ___ x ___ x ___ inches. Its ___ mAh lithium-ion battery is rated at up to ___ hours of talk time, and up to ___ hours of digital standby time. It runs on the 850/900/1800/1900 MHz GSM/GPRS/EDGE frequencies.