1.Power Charger:USB cable 7.4V 2A, 48W
2.Battery volumn: 1200mA X 2PCS,
3.Motor RPM: 1800-3200

4.Powerful Brushless High-Torque Classic Quiet Smooth Technology
5.5 speeds percussion function with LED indicators.
6.4 attachments for different effect.
7.Unique design with usb, easy to recharge, on computer or anywhere.
8.Amplitude with 8mm, Running Sound: 45DB