Power Supply: AC 100 V-240 V, 50/60 Hz (overseas use)
Sonicare App: Support OS, iOS: 11.0 or later, Android: 6.0 or later
Warranty: 2 years (Handle, Charger Stand, USB Charging Travel Case, USB Cable, Power Adapter)
Usage time: About 2 weeks (brushing 2 minutes twice a day)
Includes: Handle, A3 Premium All-in-One Brush Head, Tongue Polish Brush Head, Charger Stand, USB Charging Travel Case, USB Cable, Power Adapter, User Manual