Model：ST-H309
Working Voltage：3.3V-4.2V
Power Supply：USB charging(included)
Battery Operated：650mAh
Vibration Frequency：6200/min
Product Size：91x48x110mm
Product N.w.：67g
Packing：gift box
Q'ty/ctn：20pcs
Dimension：37.5*38.5*30.5cm/0.044cbm
N.w./G.w.：5.7/6.4kgs