Gf-07 GPS GSM Gprs Tracker Sms Global Locator - Black ?

Model: gf-07 function: positioning gps waterproof network standard: gsm/gprs gsm positioning time: gsm frequency band: 850/900/1800/1900 mhz use with sim card call time: 150-180 minutes expansion card: mini sd card accuracy of gps positioning: 500 m battery polymer type size: 3.7 v, 400 mah working voltage: 3.4-4.2v, dc16 charge input: ac110-220v, 50/60 hz charge output: dc 5.0 v, 300-500 mah time of use: 4-6 days standby time: 12 days dimensions: 4.2 x 2 x 2.5 cm weight: 20 gr