There are tons of features with this workout clock You can not only use the simple features like countdown count up stopwatch Tabata FGB but also you can program your favorite interval timing for your own Mini size and convenient USB charging allows you to easily and clearly see the time Specifications Name Mini LED Clock Material ABSShell Color Black OrangeCharging USB chargingCharging Port Type CCharging Time 2 5 hoursBattery 1900mAhProduct size 13 3 9 2 6cm 5 1 1 5 0 9inProduct Weight 97g 3 4ozDigit Length 25 4mm 1inPacking Size 15 3 5 6 4 7cm 6 0 2 2 1 9inPacking Weight 145g 5 1ozFeatures With ultra bright LED display and buzzer remind allows you to get the time easily and clearly Support 12 24 hour clock stopwatch countdown count up and custom interval mode Pre programmed 8 fat burning training modes like MIIT HIIT TABATA FGB great for your workout time management Built in 1500mAh rechargeable battery Magnetic backing you can attach it to the fridge or any metal surface to leave you hands free Measures 5 1 x 1 5 x 0 9 smaller than your cellphone taking it anywhere you want Applicable places bedroom living room office classroom gym and other indoor places Note Power Adapter is Not included Function Features 1 Compact design The Q20 mini gym timer is small and portable making it easy for decoration enthusiasts to use it anywhere 2 Versatile functions This timer can be used for various exercises including jogging yoga