1. No need to charge, all-in-one design, ergonomic design 2. Battery function detection, check the charging level, check the battery startup performance, battery overload prompt 3. LED light display, reverse connection protection 4. Quick detection and easy operation 5. No screw holes, not easy to rust, long service life 6. ABS environmental protection material, effectively anti-fingerprint, anti-fouling 7. Operating temperature: -20 to 60 degrees Celsius 8. Voltage: 12V 9. Size: about 12x4.8x1.85cm 10. Weight: about 100g
