<p>About our product:</p><p><b>Model</b>: FW507Dual+2001Family Kits</p><p><b>Specifications</b>:</p><p>-Toothbrush power source: DC3.7V</p><p>-Product material: ABS/TPE</p><p>-Voltage: Global voltage 110V-240V</p><p>-Bristle: Dupont nylon</p><p>-Toothbrush power consumption: 1.0-1.8W</p><p>-Charge time: 4 hours to be fully charged</p><p></p><p><b>Features</b>:</p><p>For 507 electric toothbrush</p><p>Ultrasonic deep cleaning, up to 40,000 micro-brushes vibrating/min, remove more stains effectively than a regular toothbrush.</p><p>Built-in 2 minute auto timer with 30 seconds interval pause encourages good brushing habits.</p><p>8 more electric toothbrush heads for over 2 years of using.</p><p>(Dentists recommend change the brush heads every 3 months for optimal brushing performance.)</p><p>USB (DC Port) charging , 4 hours charging for minimum 30 days working with 2 times a day.</p><p>The waterproof design can be washed directly.</p><p>5 high-precision brushing modes, including Whitening, Clean, Sensitive, Massage and Polish.</p><p>Whitening: For whitening teeth by using up to 40,000 vibrations per minute.</p><p>Clean : For removing 10X more stains along the gum.</p><p>Sensitive: Designed for the fresh user of electric toothbrush.</p><p>Massage: Improve gum health by delivering soothing micro-bursts into tissue to improve circulation and overall health.</p><p>Polish: Helps brignten teeth by using inverted frequencies to remove surface stains.</b></p>