Feature: 1. Support for GPS/Beidou+WIFI+LBS positioning, accurate positioning, no need to worry about theft. 2. IP67 swimming grade waterproof, have good performance even in outdoor environments or bad weather conditions. 3. Large volume, clear voice transmission, remote voice feedback, good sound quality, not easy to be ignored. 4. Long standby time and fast charging can effectively reduce the situation of being unable to use because of no electricity during use. 5. Timely reminder function, just in case, low battery alarm function, practical design and more humane. Specification: Item Type: GPS Locator Color: Black and White Material: Nylon Belt+PCBasic Functions: Multiple positioning, remote calling, voice feedback, super waterproof, electronic fence, low battery reminder, long standby, historical track, fast charging, feeding reminder, sleep monitoring Positioning: Support for GPS+Beidou+WIFI+LBS Precise Positioning GSM Frequency Band: 850/900/1800/1900 Positioning Data Upload: Default Upload Every 10 Minutes Battery: Gel Polymer 420 MAH Working Voltage: 3.3-4V DC Working Environment Temperature: -20-50℃ Working Environment Humidity: 20-80%RH GPS Positioning Time: Cold Start 38s, Warm Start 32s, Hot Start 2s GPS Sensitivity: -159dBm Waterproof Rating: IP67. Package List: 1 x GPS Locator 1 x Power Cable1 x Screwdriver1 x Card Picker2 x Screw1 x Tie1 x Manual Note: The product is a 2G network, only South Korea, Japan, Taiwan, Australia, and Singapore cannot be used.