The app allows you to track the device and receive alerts, keeping you in touch with your loved ones at the click of a button Design for monitoring and protecting people and property. In case of emergency, the person can activate it by pressing a SOS button on the unit and the two-way voice communication function allows you to talk with tracking target. keeping busy families connected with tracking information and voice functionality. Besides, it built in 3D G-sensor that can be used for motion/shock alarm, elderly falling, no motion detection, power management, and more. 4G ConnectivitySupport various 4G bands, it will fall back to 3G/2G when there is no 4G coverage. Wireless ChargingA QI charger provides a quick charging and easy to use. (Not included) Charging BaseYou simply drop your EV-04 onto the charging base and walk away. SOS AlarmIt sends SOS alarm in real-time with the complete location details of the device if a person that is in danger presses the SOS/panic button. Voice PromptsLet you know the time and the status of your device,Ex: your alarm has been activated. Calling contact number 1. Now time 11:45. Two-way CallingUse two-way calling to call your loved ones at any time,they can even call you with the touch of a button. Fall Down Alarm Be notified if a potential fall or collision has taken place. Fast alerts allow you to react promptly. Set up Geofences & AlertsSet multiple Geofences and receive alerts as a device enters or exits a particular area. 4 Locating TechnologiesReal time tracking, up to 4 location technology: GPS, WIFI, Bluetooth and LBS. A-GPS SupportAssisted GPS works using a network of satellites to quickly identify your location. Faster than conventional GPS, A-GPS works faster, which means help gets to you quickly. WaterproofWear in the shower- Fall in the shower- Get immediate assistance. No Motion & Motion DetectionA motion sensor uses multiple technologies to detect movement or no movement. If a sensor is triggered, an alarm is sent to your contact person or a monitoring center immediately. Bluetooth 5.0 connectivity Connect to your charging base for indoor locating. Dimension: 62mm*47mm*17mm Battery: Rechargeable, 3.7V, 1000mAh USB magnet charging cable Wireless charging (not included) Charging voltage: 5V DC Waterproof: IP67 Weight: 53g 4 locating technologies: GPS, BLE, WIFI, LBS