wholesale small gps tracking device mini gps tracker for pets kids and cars mini A8

Sound Control Dialing:

Use mobile phones or fixed-line to get through SIM card number in the alarm, hang up the machine when hearing the sound of the machine about 3 seconds, and that means it sets up successfully. When there is a sound above 45 db within 10 miters around the alarm, the call will be automatically make call number which you set before. 
Send 0000 SMS to turn off sound control function. 
Send 1111 SMS to turn on sound control function. 

Available state

Thailand, Spain, Russia, Arab, Portugal, Vietnam, Indonesia, India, Pakistan, Bengal

Notice:

1.Before using the new machine should be filled with electricity, in order to achieve the best effect. 
2.The Charger Papameters: 5.0V, 500 MA, in order to avoid damage the host.
3.When installing, please pay attention to GSM network signal strength, do not install in no signal or weak signal of place, so as not to affect the use effect. 
4.When ran out of battery ,the indicator light is not bright, So please charging before use. 
5.When you couldn't get through the phone ,please re-inserting the card and booting or charging again then re-test. 
6.When could not be automatic answer, please re-inserting the card and booting. 
7.When could not reply the message, please check whether the sim card have to owe a fee, or check whether the sim card is filled with text messages, then try it again. 
8.If you need other security function ,please contact the seller directly to customize. 
9.this product is forbidden for illegal purposes, Otherwise your peril