Size (D × W × H inches): 2.4 × 2.4 × 2.8
Weight (lbs): 0.3
Vibration Settings: 4 Speeds, 2 Patterns
Product - Bodysafe Silicone / ABS / PC / Li-ion Polymer Battery (Li-Poly)
Cap - ABS
USB Cable - PVC
Running Time: Approx. 90min (Full Power)
Charging Time: Approx. 120min
Waterproof up to 20"
I actually use this more than the iroha rin+. my only irk is the charger magnets do not align well. I will attach it and it flips in weird ways not sure if I got a defective one but it still works, just need to adjust a couple times. It's definitely strong and given me a new sensation of small electric sparks of pleasure. I love the design and it's pretty calming to look at. It's quiet but if you have thin walls definitely get it inder some blankets..