Small DC motor Specifications: 1) Diameter: 4mm 2) Overall length: 10.8+/-0.3 mm 3) Rated voltage: 3.0V DC 4) Rated current: 110mA max. 5) Rated speed: 13,000 +/- 2,500rpm 6) Starting voltage: 2.6V DC 7) Stall current: 130mA max. 8) Operating voltage: 2.6-3.6V DC 9) Applications: mobiles, pagers, PDAs,other vibration products Inner packing: Foam Outer packing: Strong carton