Gravity Flip LED Digital Timer – Rechargeable Countdown Reminder
Gravity Flip LED Digital Timer – Rechargeable Countdown Reminder
Gravity Flip Digital Timer with LED Display & Manual Mode
Meet the ultimate productivity companion — the F4 Gravity Induction Rechargeable Timer. Whether you're a student managing study sessions, a professional tracking tasks, or a home cook keeping tabs on the kitchen, this smart dual-mode timer adapts to the way you work. Simply flip it to start counting down, or switch to manual mode for full control. Made in China.
Two Intuitive Modes in One Device
- Gravity (Flip) Mode: Flip the timer face-down to instantly start a preset countdown of 5, 10, 30, or 60 minutes. Flip it face-up to pause, and face-down again to reset — zero button-pressing required.
- Manual Mode: Use the M/S and ST/SP buttons to set any custom countdown or run a count-up stopwatch with pinpoint precision.
Smart Alerts — Your Way
- Loud (90–100 dB): Clear audible alarm you won't miss
- Low (70–80 dB): Gentle alert for quieter environments
- Silent / Vibration: Discreet haptic feedback — perfect for libraries, offices, or classrooms
At the end of each countdown, a 1-minute blinking LED + audio cycle repeats every second until dismissed — no more missed alarms.
Rechargeable & Long-Lasting
- Built-in 500 mAh battery with USB charging (red light = charging; green light = fully charged)
- Ultra-low standby power consumption (<20 µA) keeps the battery going for weeks
- Auto-sleep after 5 minutes of inactivity to conserve power
- Battery low? The screen flashes at under 10% to prompt a recharge
Memory Function & Easy Reset
After a countdown ends, a quick press of ST/SP recalls your last set time so you can repeat your session instantly — ideal for Pomodoro-style study blocks or interval training.
Key Specifications
| Model | F4 |
| Material | ABS / PC Plastic |
| Battery | 500 mAh rechargeable (500 mA charging current) |
| Working Temperature | 0°C – 50°C |
| Working Current | 11 mA |
| Volume Settings | Silent/Vibration | Low 70–80 dB | Loud 90–100 dB |
| Display | LED numeric display |
| Certification | CE / EU |
| Origin | Made in China |
Perfect For
- 📚 Student focus & study sessions
- 🍳 Kitchen cooking & baking
- 🏢 Office task management & meetings
- 🏠 Living room, bedroom, or home office use
- 🧘 Meditation, stretching, and mindfulness routines
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Frequently Asked Questions
Q: How does gravity mode work on the F4 flip timer?
A: In Gravity Mode (Mode 1), simply flip the timer face-down to automatically start a preset countdown of 5, 10, 30, or 60 minutes. Flipping it face-up pauses the timer, and flipping it face-down again resets it — no buttons needed. It's ideal for hands-free time management during cooking, studying, or focused work sessions.
Q: Does the timer need batteries or is it rechargeable?
A: The F4 timer features a built-in 500 mAh rechargeable battery — no disposable batteries required. Charge it via the USB port. The red LED indicates charging is in progress, and the green LED lights up solid when the battery is fully charged. If the battery drops below 10%, the screen will flash to remind you to recharge.
Q: Can I use this timer silently in a library or classroom?
A: Yes! The F4 timer includes a Silent/Vibration mode that delivers discreet haptic (vibration) feedback instead of an audible alarm, making it perfectly suited for quiet environments like libraries, classrooms, and open-plan offices. You can also choose from Low (70–80 dB) or Loud (90–100 dB) alert settings for other situations.
Q: What is the memory function on this countdown timer?
A: After the countdown reaches 00:00, briefly pressing the ST/SP button displays the last set time, so you can repeat your session with a single press. This is especially handy for repeated study intervals (e.g., Pomodoro technique) or recurring kitchen tasks. Long-press ST/SP to fully reset when needed.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.