NOTE: Difference CX-01A Between CX-01BCX-01A have built-in camera to take video & photo to send back!Basic parameter: frequency range GSM850/900/1800/1900MHZExternal dimension: 3.5cm*2.0cm*1.4cm(L*W*H)Charging input: InputAC110-220V50/60HzCharging output: OutputDC5.0V 300-500mAMachine battery: 3.7V 400mAh Li-ion batteryStand-by time:5daysContinuation call: 150-180 minutesNetwork type: GSM/GPRSStorage temperature: -40¡ãC to +85¡ãCOperating temperature: -20¡ãC to +55¡ãCHumidity range: 5%--95% non-condensingMethod of application1: First of all、 you should opened GPRS when you buy a new SIM card、 if not you can't use the function of take photos to send MMS normally.2: The SIM card should opened CID (caller identification)、 Otherwise you can't use voice control callback normally、 Vibration alarm and the function of take photos to send MMS.A. Prepare: buy a SIM card、 (you can buy it in your local place).B. Starting up: Products will be automatically switched on after you open the card cover do as the indication direction to insert SIM card、 boot 5 seconds indicator light goes out、 this time into the standby state.3. Voice query around the product : dial the card number in the locator directly、 After a few seconds you can hear the sound of the locator around after get through.( In the query locator itself does not make any sound and light)4. Take photos to send MMS: Using a mobile phone text 8888# sent to the locator number or you can dial the card number in the locator directly and then hang up. Later on the locator will send a MMS to the mobile phone.(in order to take the perfect photos、 please adjust the camera shooting angle in advance.5. Voice control callback: Using a mobile phone text 7777# sent to the locator number、 Later on the locator will send a message said: "voice control callback opened " to the mobile phone、 when the sound louder than 60 decibels around the locator、 the locator will automatic call the number you set in advance. If you want to turn off this function、 please text 7777# sent to the locator number to cancel the bundling.6. Vibration alarm: Using a mobile phone text 6666# sent to the locator number、 Later on the locator will send a message said: "Vibration alarm opened" to the mobile phone. When the locator was moved or touched、 it will automatic call the number you set in advance. If you want to turn off this function、 please text 6666# sent to the locator number to cancel the bundling.7. Indicator light: boot 5 seconds indicator light goes out、 indicator light double light flash when it is electricity shortage、 the indicator light lights when charging.Real-time location query: Using a mobile phone text 9999# sent to the locator number、 Later on the locator will send a message about the links of the geographic position to the mobile phone、 when you open the links it will show location map and address description in words、 it makes the location more accurately.(this function may limited by the local network and unable to use、 our company won`t return of goods reimburse、 please understanding.)Support state: China Britain France Germany Holland Italy Spain Portugal Brazil Denmark Russia Poland Turkey Hungary Thailand Greece Indonesia Malaysia Vietnam Iraq Saudi Arabia