Feature 1、In an emergency, you can manually start the PLB and transmit a distress signal to the international search and rescue satellites system to achieve timely rescue. 2、Built‑in GPS, fast positioning, rapid alarm, with code writer and LED flash light, features fault diagnosis function. 3、LCD screen can display a variety of information such as coordinate status, clear to read, easy to operate. 4、Compact size, light weight, convenient to carry, floatable designed make it not easy to lost. 5、Wide application, suitable for outdoor exploration, field operations and other personnel. Condition: Item Type: Personal Locator Material: ABS Color: As picture shown 406mhz Satellites Signal Transmitter: Transmission Frequency: 406.040MHz±1KHz Output Power: 5W(37dBm)±2dB 121.5mhz Positioning Transmitter: Transmitting Frequency: 121.5MHz±3KHz Output Power: 17dNm±3dB GPS Global Positioning System: Receiver 50 Channels, L1 Frequency Point, C/ACode System Accuracy: <100m Basic Specifications: Battery Pack: Lipo Manganese Battery (built-in), CR17335, Valid for 8 Years Capacity: 2000mah Operating Time: 24h@-20℃ Strobe Light: Led, 24 Times Per Minute Working Temperature: -20℃-+55℃ Package List 1 x Personal GPS 1 x Manual 1 x Plush Cover