Remote operation: You can control the locator by SMS to and stop recording, positioning and other tasks.Remote location query and online tracking: supports remote query of the current location and real-time tracking.Expansion TF card: Support expansion of TF card and remote clearing of TF card memory.Remote inquiry of locator status: it supports remote inquiry of whether all functions of the are turned on or off, battery capacity, binding number, signal strength, startup frequency, GPRS, TF card capacity, etc.Remote recording: Support the remote recording function of the locator.Specifications:Product: GF-07 positionerColor: blackMaterial: plasticBattery capacity:3.7 V 400 mah - Standby time:12 Working time:4 to 6 Talk time:150-180 minutes:GSM/GPRSGPRS:Upload60, /IPGSM positioning time: 25 secondsOther parameters:Talking current: 150mAStandby current: 2.5mAOperating voltage: 3.4 4.2V DCOpen voice control current: 30mAThe expansion card:Mini TF cardWorking temperature:- 20 C to 55 CAppearance size: 3.5 x 2.0 x 1.4 cm (L x W x H)Basic parameters: spectrum GSM850/900/1800/1900 MHZSupported countries: China Britain Netherlands , , Denmark Russia Turkey Hungary Thailand Indonesia Vietnam myanmar Pakistan, Iraq, Arabia, Greece the kazakhstan Mongolia dubai, etc...Package Contents:2 x GPS LocatorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.