Function: 9 frequency vibration & 3 levels of telescopic  Telescopic stroke is approximately 5cm  Comes with a mobile phone holder  Waterproof Rating: Not waterproof   Material: ABS+PC+TPE  Charging method: Type-C charging  Charging time: 120 minutes  Use time: 45 minutes We are committed to keeping all customer information confidential and carefully packaged to ensure privacy. If you have any questions about the product, please feel free to contact us, we will reply you within 24 hours.