**Product Specifications:**
**Brand:** Tianfu
**Model Number:** TF-C300
**Style:** Three-row 300-lap stopwatch
**Dimensions:** 82*62*23mm
**Net Weight:** 68g
**Battery:** CR2032 button battery
**Functions:**
- Time/calendar display
- Alarm clock
- Countdown timer
- Metronome
- Paddle frequency measurement
- Maximum timing of 10 hours
- Permanent storage of stopwatch data
- Button functions: Start/Stop, Reset, Recall, Lap Start, Set, 300 Memory, Select, Split
**Features:**
- Large high-definition display screen
- Ergonomic button design for comfortable operation
- Removable battery compartment for easy replacement
- Dual-sided display with clear visibility
- ABS shell for scratch and wear resistance
- User-friendly design with easy-to-operate buttons
**Additional Features:**
- Stopwatch 1 and Stopwatch 2 record the same running time
- Lap and Split time display
- Countdown timer with customizable settings
- Metronome function with adjustable beats per minute
**Operation Instructions:**
- A key: Start/Stop
- B key: Reset/Lap
- D key: Mode switch
- Alarm clock setting: Press D key to enter alarm clock mode, long press C key for 2 seconds to set alarm time
- Stopwatch function: Split and Lap time display, with up to 300 memory slots
- Countdown timer function: Set target countdown time and run the timer
- Metronome function: Set beats per minute and run the metronome
**Design Details:**
- Multi-color design with classic black for a stylish look
- Ergonomic button layout for ease of use
- High-quality materials for durability and longevity
**Paddle Frequency Measurement:**
- Function for measuring paddle frequency
This Tianfu stopwatch TF-C300 is designed to be a reliable companion for all your timing needs, offering essential features and a user-friendly design for various sports and activities.
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