1.the screw hook yaw is less than Ф2mm.
2.the surface spray Teflon, uniform coating, no leakage spray, can pass the salt spray test.
3.600 mAh Ni-MH battery
4.Convenient micro-USB charging port & low noise <70 dB
5.Charming blue LED lighting in operation and while charging
6.Red indicator flashs while release cork from opener
7.Opens up to 70 bottles on a single charge.