LAUNCH BST360 Car Bluetooth Battery Tester is a 6V/12V lead-acid battery test clip that supports Bluetooth wireless communication, can be used with X431 V+, X431 PRO5, X431 PAD V/ PAD VII CR919E CRP919X CRP909, It is used for measuring the actual Cold Cranking Ampere(CCA) of the car starter battery, analyzing the battery health, and detecting the starting system and the charging system of the car.