Ni-SHEN Plaque and Tartar Remover, Dog Ultrasonic Teeth Cleaner Toothbrush for Tartar and Stains with LED Light, 5 Modes Low Noise Sonic Tooth Cleaning Kit Tool for Dogs (Black)Brand: Ni SHEN Color: Black Features: Our dental scaler uses advanced high frequency vibration technology, with a vibration frequency of up to 44KHZ, or even up to 2 million vibrations per minute, which can effectively remove plaque, tartar and calculus from the teeth of pets such as dogs. The dog tooth toothbrush has 5 working modes: soft, comfort, standard, strong, and super strong. There are 5 bright LED ring lights on the top that can clearly