* Wish you have a happy shopping in my store.Built-in battery: 200mAh rechargeable li-on batteryStandby time: 30 daysCharging time: 1.5 hoursSustainable use of time: 2 hoursMaximum volume: <40dbIP rating: >IPX7Item size: Approx.8.5 * 2.8cm / 3.3 * 1.1in (L * W)Item weight: Approx.41g / 1.4ozPackage size: Approx.12.2 * 9.3 * 5cm / 4.8 * 3.7 * 2in (L * W * H)Package weight: Approx.190g / 6.7oz    Wireless Bluetooth 4.0 connection.Adopt medical silica gel, fine and smooth, more safe and reliable to use.Dual mode: remote control with your loves & enjoy self.High performance of motor, low power consumption.Thread surface design to reach a stronger stimulation.10 vibration mode for option.Built-in rechargeable lithium battery, Long vibrating time of 2 hours.Waterproof design, free to wash it after every use.Compatible for iOS & Android smartphone.