1)1*"AA" Battery; 

2) Silence, Sakura with switch Standard Movement (Motor); 

3)standard shaft or I-shaft, balck cover, transparent cover for your choosing; 

4)with or without Switch for choosing;

5)shaft lenght: 5/6/7/9/12/13/16/18/22/25/28mm 

6)higt quality.Made In China.

7)Sakura ,Zubair brand or OEM brand meet your requiry.