תיאור מוצר
1,This device only support 2G SIM card, so only support GSM network, don't support 3G,4G SIM card. Before you place an order, please make sure the telecom company of your country support 2G SIM card, otherwise the device will not work, or maybe only have a call ,can't with SMS to control;
2, This product can't work in USA and Canada， so if you are from USA and Canada, please don't buy this product.
3, The input port is useless for this device!!!
