1. Built-in lithium battery, can meet the long-term product testing use, flexible and convenient to carry, small size, easy to store 2. Intelligent automatic detection, toggle switch re-test 3. Support all kinds of mobile phone computer TYPE-C, 8pin device detection 4. High-definition display, high-specification chip 5. Intelligent automatic detection 6. Use: detect the mobile phone non-charging fault function and quickly find the motherboard DP DM CC test point 7. Battery capacity: 420mAh 8. Size: about 5.1 x 3.2 x 1.7cm 9. Net weight: about 34.5g