Main functions: Real-time free tracking, GSM/GPS dual-mode positioning, Small size, equipped with high-quality nylon pet collar, Electronic fence, speeding, low battery alarm, voice monitoring. Free tracking platform, computer, mobile client, iOS/Android APP, VX. Locator usage guide Service platform: www.365gps.net Apple application: 365GPS Android application: 365GPS To Product specifications: Product size: 54*29*23mm Weight: 45g Packing size: 120*89*32mm Weight: 110g Collar length: 48.5cm Collar width: 1.5cm To 1: Preparation before use 1. The device supports mobile 2/3/4G mobile phone cards and IoT cards. CDMA telecom card and Unicom card are not supported. 2. Select the GSM network nano SIM card, and you need to activate the GPRS data access function. If you need to use the phone function, the SIM card must enable call and caller ID display. 3. Scan the QR code on the homepage to download 365GPS mobile client To Two: boot Insert the sim card into the device (there is a schematic diagram of the direction on the card holder) Long press the power button for 3 seconds until three lights are on (the middle position of the product surface) Power on: long press for 3 seconds SOS: Press and hold for 3 seconds in power-on state Shut down (with sim on) long press for 10 seconds Shut down (no sim card) long press for 3 seconds To Three: Account login Each device has a barcode label, which is the unique identification code of the device, namely the IMEI number, which consists of 15 digits and is also the login account name of the APP. To Four: indicator light Red light: battery indicator, slow flashing is normal, fast lightning is low, standby is off, charging is always on. Yellow light: GSM signal light, slow flashing is normal, fast flashing is searching for signal, standby is off. Blue light: GPS signal light, slow flashing is normal, fast flashing is searching signal, standby is off.