1) Wide Compatibility: This premium replacement 3757 charger is widely compatible with Braun Oral-B Pro/ Vitality/ Smart/ Genius/ Kids and all Oral-B Round head electric toothbrush, example as below:

For Professional Series: Pro 500 600 650 670 690 700 750 760 770 790 900 1000 1500 2950N 2500N 2000N 2000S 2000 2500 2900 2950N 3000 3500 3900 3709 3710 3728 3737 3756 4736 3761 3762 3764 3765 3766 3767 3771 3772 4736 4717 4729 4733 4000 5000 6500 7000 7500 8000 8850 8900 9000 9000s, etc.

For D Series: D10 D12 D16 D17 D18 D19 D20 D29 D34 D36 D12013 D12013w D12523 D3709 D3728 D3737 D4736 D4717 D4729 D8850, etc.

For IO Series: iO2 iO3 iO4 iO5 iO6 Models. (Note: Newer Model iO7/ iO8/ iO9 iO10 not support)

For Smart Series: 1000 1500 2500 3000 4000N 4000W 4500 5000 6000 6000N 7000, etc.

For S Series: S12 S18.

For OC Series: OC18 OC20

For Genius X 6000 7000 7500 8000 8100S 8000N 8100S 8500 8900 9900 9000N 9000 10000, etc.

For Kids Vitality Pro Vitality Plus Vitality 170 Vitality 100, etc.

2) 11-Year of dedicated in. We are dedicated to produce quality replacement electric tootbrush charger for Braun Oral B 3757 charger since 2014. 11-Years of dedicated research, creation, innovation, making our quality stable and equal to or even better than the original one.