1.Rotate to and fro in an angle of 60 degrees;
2.replaceable brush heads;
3.soft & grinded Du-pont tynex bristles;
4.2 AA alkaline batteries or rechargeable batteries;
5.New batteries can be used 450 minutes continuously;
6.The brush head rotates to and fro 5000 times per minute;
7.Water-proof;
8.CE,UL,ISO13485 certificate
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