Thank you for viewing! [Product Overview] - Brand: Oral-B - Model: iO 3770 (Green) [Main Specifications] - Operation: Micro-vibration + Round Rotating Brush - Brushing Modes: Daily Clean, Gentle Clean, Whitening - Timer Function: 2-minute timer, 30-second interval vibration notification - Power Source: Rechargeable (using dedicated charger) - Full Charge Time: Approximately 3 hours - Usage Time: Approximately 10 days (when used twice a day for 2 minutes) - Waterproof Performance: IPX7 [Included Items] - Main unit (unused) - Charger - Replacement brush (unopened, 1 piece) [Condition] - Unused, but without outer box or instruction manual - Operation confirmed, ready to use immediately [Please Note] - Considered as used due to the absence of the outer box - Please refrain from purchasing if you are overly concerned about condition Thank you for your consideration!