Raw Material：Food Grade Silicone+ABS Relaxation Tools Size: 4.4*21.8cm/1.73*8.58in Relaxation Tools Weight: 200g(USB not included) Waterproof Grade: IPX7 Voice db: ≦40db Running Time: 60 min(High Speed); 120min(Low Speed) Charging Time: 2.5 Hours Vibrating Mode: 3 Vibrating Speed+7 Vibration Pattern Mode Function Button: On/off Button+Vibration Button LED Pattern Indicator Vibration Frequency: 8000 RPM Detailed Warm Tips About Usage: 1.Long press thepower button for 3 seconds to ON/OFF. 2. Click the button to switch between vibration modes, while long press for 3 seconds to turn off the headend power alone. 3. Click the button to switch between vibration modes, while long press for 3 seconds to turn off the tail end power alone. 4. When no longer in use, please press and hold the power button for 3 seconds to turn off completely. 5.Relaxation Tools can not be switch on when it was charging. When you get it for the first time, just wash it with clean water and charging full before use.