Features: 1. TPMS monitors tire pressure and temperature status in real time, providing real-time voice alerts and warning indicator lights to enhance driving safety. 2. Includes 2 external sensors with IP67 waterproof rating, suitable for use in rainy conditions, offering high sensitivity and accurate pressure and temperature measurements. 3. Supports USB charging, allowing you to charge the device using a USB cable (not included) when power is low, ensuring convenient usage. 4. Compatible with motorcycles with 2 tires, providing reliable fitment without compatibility concerns. 5. Designed to enhance driving safety by providing early warnings of tire condition changes. Specification: Item Type: Tire Pressure Monitoring System Material: PC + Nylon Fiber / Copper Nozzle Host Technical Parameters (Host includes built-in battery) Host Built-in Lithium Battery: Capacity 800mAh, Model 803035 Working Temperature: -20°C to 80°C Storage Temperature: -30°C to 85°C Power-on Voltage: DC 5V Frequency: 433.92MHz ± 20.00MHz Sensor Parameters (Sensor includes button battery) Built-in Button Battery: 60mAh Capacity, CR1632 Working Temperature: -20°C to 80°C Storage Temperature: -30°C to 85°C Pressure Range: 0-6.6Bar Pressure Accuracy: ±0.1Bar Temperature Accuracy: ±3°C Transmitting Power: