At less than 10mm in overall length, the S4Z05B064-02P is the smallest vibration motor is our low current series.  It draws 17 ma (typical) @  3 Vdc, consuming a low  51 milliwatts of electrical energy.  If you require this motor without the  rubber boot order S4Z05B064-02P.   This boot is recommended when mounting this low current vibrating motor in a cavity in the devices housing.  Custom lead wire lengths are available as are connectors.    This series of  low power consuming vibration motors are relatively high priced.  After sample approval, the minimum order is 3 master cartons, which total  4200 pcs @  USD  2.15 ea