This is a miniature 130 vibration motor 25x20mm rated at 3.7V
Specifications:
Model: Mini 130 Vibration Motor
Motor size: 25*20mm
Motor height: 15.3mm
Voltage range: DC 3V-6V
Rated voltage: DC 3.7V
No-load current 0.3A,
Blocking current 0.45A,
Speed 2450rpm
Rated current: 0.8A
Weight: 26g
Sold individually.