The name says it all, small but powerful.
 
Material: silicone,ABS
Color: Black,Purple,Pink,Blue
Function: 12 frequencies vibration
Charge Method: USB magnetic charging
Battery Capacity: 150mAh
Charge Time: <2 hours
Work Time: 0.6 hour
Noise: <45 dBs
Waterproof: IPX7
Product Size: 10.0cm / 2.4cm / 2.1cm
Packing Size: 16.4 / 10.9 / 4.15cm
Product Weight: 35g