Name:Car Bluetooth-compatible 5.0 Tire Pressure Monitoring System Communication name: BLE4.1 Bluetooth-compatible version: 5.0 Working voltage: 2.1-3.3V Display method: APP Waterproof grade: IP67 Tire pressure monitoring range: 0-100PSI (error less than 3psi) Bluetooth-compatible operating frequency: 2.4GHz Bluetooth-compatible transmit power: 4dBm MAX Response time: less than equal 4s Single sensor power supply: 140mAh (1 coin cell battery 1632 product includes battery) Battery life: 2-3 years Applicable: 4 wheel cars and 2 wheel motorcycles. Color:Black Material:plastic Package Contents: 2 * Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.