Description: Use: No matter the alarm locator is placed in the car, in the schoolbag of the child, in the pocket of the elderly or in the bag of valuables, you can send SMS instructions to the alarm locator through your mobile phone to query the location of the alarm locator, which is convenient for you to monitor the whole process and grasp the location of the target in real time. Product features: Remote operation: can be controlled by SMS locator and stop recording, positioning and other tasks. Remote query location and online tracking: supports remote query of the current target location and real-time tracking. Extended TF card: support extended TF card, and remote cleaning TF card memory. Remote query locator status: support remote query host all functions on or off status, battery capacity, binding number, signal strength, boot frequency, GPRS, TF card capacity, etc. Remote recording: support remote open locator recording function. Voice-activated callback: Support remote voice-activated callback function. When the sound around the locator is greater than 40 decibels after opening, the locator will automatically call the pre-set mobile phone number. One-way call: When dialing the locator number, you can hear the sound around the locator (the locator will not emit any sound and light during the call). Specifications: Product: GF-07 locator Color: Black Material: engineering plastics Battery capacity: 3.7V 400 mah lithium ion Standby time: 12 days Working time: 4 to 6 days Talk time: 150-180 minutes Format: Global Communication/GPRS GPRS:Upload60,TCP/IP GSM positioning time: 25 seconds Other parameters: Call current: 150 mA Standby current: 2.5 mA Working voltage: 3.4-4.2V DC Turn on voice control current: 30mA Expansion card: mini TF card Operating temperature:-20 to 55 Appearance size: 3.5*2.0*1.4cm (length * width * height)