3G technology: replace Last generation 2G,3G could transmit location date fast back to parents' smartphone app, parents can monitor their children without notice.</br>Attractive features:3g micro sim supported,1.54inch with 240*240 resolution colorful screen,2.5D smooth quality touch panel, Rotating camera(2MP), two-way calls, multiple positioning(GPS+WIFI+AGPS+LBS), electronic fence, a key SOS, curriculum, voice chat, multiple alarm clock(Analog clock face/12hour/24hour system optional?, remote monitoring.</br>WiFi+GPS+LBS+APGS 4 Mode Location, compare with the last generation technology, this wifi positioning technology, make the watch in an indoor or a wifi hotspot area hot and automatically automatically identify the strong signal decoding using wifi positioning,it can greatly improve the watch in indoor positioning accuracy, children do not need to do any operation, convenient and safe.</br>Rotating camera: 200w pixels, cleverly designed so that children have more fun,could take a photo with APP launch, it does not need to do any operation by kids,in the case of don't disturb children, watch will automatically to the child's environment photograph, help you understand the safety of the surrounding environment. It is especially suitable for children to use when in school or other outdoor activities</br>Upgrade 3G Version:A free compatible SIM card is already included with this watch package, so you need not have to buy extra SIM thereby avoiding the wrong SIM card / compatible issues,just open "5$ LOW COST Data Plan" to get valuable option. Our watch also support other WCDMA850/1900 sim very well,you could also select your own choice.</br></br>Product Description</br></br><b>Specifications:</b><br>1: Frequency: 850/900/1800/1900 Quad Band WCDMA BAND1 BAND8<br> 2: chip: GSM / GPS: MT6572A, frequency dual-core 1.2GHz<br> 3: Display: 1.54-inch LCD 240x240 supports up to 720P<br> 4: APP support: Android / IOS<br> 5: Battery capacity: 600 mA Charging time: 2H Standby time: 72H<br> 6. Positioning: GPS positioning, AGPS positioning, base station positioning, wifi positioning Positioning: 3-200 meters<br><br> <b>Product function parameters:</b><br> APP Background: security guard 2<br> 1: GPS positioning, AGPS positioning, base station positioning, WIFI positioning four re-positioning<br> 2: high-definition camera, two-way call, multiple positioning, electronic fence, a key SOS, voice micro-chat, many friends, multiple alarm clocks<br> 3, for 3-12 years old, synchronized curriculum, Baidu Encyclopedia, 90-degree rotating camera, children encyclopedia, early childhood games, voice intercom<br></br><br/>http://www.amazon.com/gp/product/B01MXMZWMJ