HONMAX Interval Timer displays a bright, easy-to-use timer with a metronome (beat). The HONMAX 8800 Interval Timer and clock and Stopwatch is a multi-interval timer. The 8800 timer is the trainers timer does in addition to saving up to 9 programs and offers up to 18 different intervals. allowing you to time all your work and rest periods. Master Your Time Package contains ● 1x Timer (H-8800) ● 1x Protective Carry Sleeve ● 1x USB-C Charging Cable ● 1x Adjustable Hand Lanyard ●1x Instruction Booklet Specification Product Size: 6.1*2.1*1.0 inPower Cord Type: USB-C Charging CableHousing Material: ABS+RubberBattery Type: 3000mAhSupply Voltage: 3.7 VInput :5V 1A The fitness timer function introduction Time up to 18 different intervals. Repeat intervals or groups of intervals up to 99 times. Save up to 9 programs. Up timing mode.Repeat intervals or groups of intervals up to 99 times. countdown timing mode.Repeat intervals or groups of intervals up to 99 times. With metronome (beat), beat and tempo are adjustable Volume adjustable. The timer features an anti-glare lens. Portable gym Clock Timer Magnets and portable design enables you to bring the HONMAX workout timer anywhere you go. Going out for an outdoor fitness or gym? Simply put it inside your bag. More 30 Hours Playing Time Never worry about battery life! HONMAX gym timer can last up to 30H with just a single charge. Enjoy the endless fun from the day to the night, anytime, anywhere. Mobile power can also be charged Compared with other timers, HONMAX interval timer equipped with 3000mAh battery and Type-C charging port is faster, more powerful and more flexible. Faster charging (full charge in 3 hours) and flexible compatibility. UP and Countdown timing The countdown and countdown can be set to repeat the cycle up to 99 times, the metronome function can also be turned on, and the settings can be modified.3 sets of programs can be saved. Custom interval timing In the custom interval timing, you can set 1 group, 2 groups, or up to 18 groups of interval timing, and repeat the cycle up to 99 times. You can also turn on the metronome function and set and modify it. 3 sets of programs can be saved. Metronome function settings The metronome function can modify beat and tempo, and Group F and Group C can respectively set the numbers you need. The beat function can be turned off and on, or only group F can be set, group C beat=0, and group C beat is turned off. Specifically designed to meet the needs of sports people, we have designed 8200 basic model, 8600 advanced model, 8100 professional model, and 8800 extended model. This series of products meets the needs of fitness exercises. They're portable, durable, visible, and efficient, while also giving people confidence they can survive the rigors of a workout environment.