How to Use: 1. Set a 10‑minute countdown, use the remote control to input 10:00 and press the confirm button, the clock will automatically display 00:00, press the start button to start timing from 00:00, and stop automatically at 10:00; 2. To set an 8 minute countdown, you can use the remote control to input 08:00, press the confirm button and the timer displays 08:00, press the start button, the timer starts to count down from 8 minutes. The timer ends at 00:00; 3. You need to press the shortcut key, and then press the start key, the corresponding set of time will start to run. Support up to 10 groups of alternate timing and quick save. The clock also has built‑in two basic fitness alternate timings, TABATA and FGB modes. Just press the corresponding TABATA or FGB key to enter the corresponding timing mode. Specification: Item Type: Interval Timer Application: Home, fitness, sports, meeting timing. Display Screen Size: 1.5 inches Shell Material: New Aluminum Alloy Product Panel: High-Gloss Glass Material Display Material: High Definition LED Clock Accuracy: Error ≤ 3 Seconds Power Supply Mode: External Input Voltage: 5V 2A Applicable Circumstances: Suitable for all kinds of indoor places Product Size: Approx. 27 x 8.8 x 2.7cm / 10.6 x 3.5 x 1.1in Remote Control Battery: 2 x AAA Battery (self-provided) Package List: 1 x Timer 1 x Power Cord 1 x Remote 1 x User Manual 2 x Hook 4 x Screw