TK403D Car 4G GPS Bluetooth Satellite Locator Tracker, with Remote Control 1. 4G fast and accurate positioning in seconds, unlimited distance blind spots, global real-time positioning, full-band 4G, universal worldwide, can be used by motorcycles, electric vehicles, and cars. 2. Low Power Scheme: Direct from the car battery, no manual charging, no power consumption and no damage to the battery, less time and worry than wireless charging GPS. 3. IP67 Waterproof and Dustproof: Offering stable and durable working performance. 4. Over Speed Alarm: When the car is moving over a limited speed in average in a limited time period, the device will send over speed alarm SMS to user. In this way, we can pay attention to the use of the car and avoid the unexpected accident. 5. Specification: Network: GSMGPRSLTE Band: 4G: B1B2B3B4B5B7B8B28AB28BB40, 2G: 85090018001900Mhz GPS sensitivity: -165dBm Time to first fix: cold status 45s, warm status 35s, hot status 1s GPS accuracy: 5m Applicable car power: 12-24V Battery: rechargeable 3.7V 300mAh Li-ion battery Storage temperature: -40~85 degree Celsius Operation temperature: -20~45 degree Celsius Humidity: 5-95% non-condensing Size: 9.6x5.3x1.8cm Weight: 70g