The S600 PLUS provides 30,000 stokes per minute with the electronic control vibrating system while the cordless dental system? features a convenient, hand-held design? that is ?optimal for traveling purposes. The S600 PLUS comes available with 2 NiMH rechargeable batteries,? 2 brush heads,? 2 tongue brushes,? 2 interdental brush tips, and? 2 floss heads. As a bonus, it also comes with 12 additional brush heads.