Product parameters:Power: 1WVoltage: 5VCharging time: more than 8 hoursColor: white gold / black goldLifespan: about 7-15 days, use twice a day for two minutesPackage:Electric toothbrush * 2Replacement brush head * 6Travel box * 2 40,000 MOVES PER MINUTE WITH ULTRASONIC TECHNOLOGY & 5 BRUSH MODES - The advanced ultrasonic technology delivers high-speed vibration to efficiently remove up to 300% more stains. 5 modes of whitening, cleaning, sensitizing, buffing and massaging to meet different oral needs and adapt to your brushing goals. 2-MINUTE SMART TIMER & LONG LIFE BATTERY LIFE - Built-in timer with 2-minute automatic switch-off and interval pause, in which you are reminded every 30 seconds to change the brush areas to ensure a complete mouth cleaning. Developed with USB fast charging system. Ensure a full day of usage by charging it for just 5 minutes. Use the toothbrush for 30 days on a full charge of 4 hours. 6 BRUSH HEADS WITH NYLON BRUSHES BY DUPONT & TWO POINTED POINTS - This affordable sonic toothbrush set contains 6 replacement heads, " W " wave bristles and slightly smaller heads to clean difficult areas efficiently and easily. ELEGANT LIGHTWEIGHT DESIGN & IPX 7 WATERPROOF - These stylish toothbrushes are made for at home or on the go It is very easy and convenient to stow them in the travel bag with the supplied protective covers for the brush head. Since they are waterproof, you can use them in the shower too.