Size (D × W × H inches): 1.38 × 1.38 × 6.30
Vibration Settings: 4 Speeds, 2 Patterns
Materials: Product: Silicone / ABS / PC / Li-ion Polymer Battery (Li-Poly)USB Cable: PVC, magnet
Other Specs:Features iroha's Soft-Touch silicone and dust-proof coatingUSB RechargeableRunning Time: Approx. 90min (Max Strength)Charging Time: Approx. 120minWaterproof up to 50cm / 20"