Product color: pink, green, blue
Material: Silicone and ABS
Noise index: ≤50dB
Size: total length 9.8cm, diameter 3.6cm
Waterproof level: life waterproof.
Power supply: Lithium battery-pin charge
Charging time: 3 hours
Battery: 280mAh
Use time: 30 minutes.
Operation interface: 8 kinds of frequency conversion cycles

Two styles: 1. Youth version: remote control
                    2. Heartbeat version: No remote control