A. GF07 Portable Mini GPS GSM/GPRS Car Tracking Locator Device Sound Recording Microtracker Loss preventer Tracker retainer B. Usage: Whether the alarm locator is placed in the car, children's schoolbags, old people's pockets or valuables bags, you can send SMS instructions to the alarm locator by mobile phone to inquire about 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. C. Product features: 1. Remote operation: You can control the locator by SMS to perform and stop recording, positioning and other tasks. 2. Remote location query and online tracking: It supports remote query of the current target location and real - time tracking. 3. Expansion TF card: It supports expansion of TF card and remote clearing of TF card memory. 4. Remote inquiry of locator status: It supports remote inquiry of whether all functions of the host are turned on or off, battery capacity, binding number, signal strength, startup frequency, GPRS, TF card capacity, etc. 5. Remote recording: It supports the remote recording function of the locator. 6. Voice - activated callback: It supports remote activation of voice - activated callback function. After activation, when the sound around the locator is greater than 40dB, the locator will automatically call the preset mobile phone number. 7. One - way call: When dialing the locator number, you can hear the sound around the locator (the locator will not emit any sound or light during the call). D. Specifications: 1. Product: GF - 07 positioner 2. Color: black 3. Material: engineering plastic 4. Battery capacity: 3.7 V 400 mah Li - ion 5. Standby time: 12 days 6. Working time: 4 to 6 days 7. Talk time: 150 - 180 minutes 8. Format: GSM/GPRS 9. GPRS Upload: 60, TCP/IP 10. GSM positioning time: 25 seconds E. Other parameters: 1. Talking current: 150mA 2. Standby current: 2.5mA 3. Operating voltage: 3.4 - 4.2V DC 4. Open voice control current: 30mA