1、H1/H2 respectively represent 24/12 hour display, and you can use remote control to switch different display modes. 2、Supports up to 10 groups of alternate timing and quick storage; two fitness alternate timing-TABATA and FGB modes are set in the clock. 3、Support up to 99 minutes, 59 seconds and 99 milliseconds count up and count down, and the time setting is very simple. 4、Equipped with a hook, this LED timer can be fixed on the wall with screws, and the installation is very simple. 5、Allows for flexible application in various places, including but not limited to home, office, class, gym, etc. <p class="wang-edit-text"><p class="wang-edit-text">Item Type: Interval TimerApplication: Home, fitness, sports, meeting timing. Display Screen Size: 1.5 inchesShell Material: New Aluminum AlloyProduct Panel: High-Gloss Glass MaterialDisplay Material: High Definition LEDClock Accuracy: Error ≤ 3 SecondsPower Supply Mode: ExternalInput Voltage: 5V 2AApplicable Circumstances: Suitable for all kinds of indoor placesProduct Size: Approx. 27 x 8.8 x 2.7cm / 10.6 x 3.5 x 1.1inRemote Control Battery: 2 x AAA Battery (self-provided)<style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Timer1 x Power Cord1 x Remote1 x User Manual2 x Hook4 x Screw