Function: 10 Frequency Vibration Color: Rose + Gray Size: 20.5 * 5.4 cm/8.0" * 2.1" Insert Length: 18 cm/7.0" Net Weight: 369 g/0.8 lb/13 oz Power: lithium battery/Rechargeable Material: Silicone Package: OPP Bag Further: Non-toxic/Wireless