This multi-functional wall timer offers you a variety of standard functions including: clock display, stop watch to hundredths of a second and several pre-programmed intervals.-In addition the timer can be programmed with specific count up to and down from times.-Number of rounds, length of rest and length of work can all be set up by the user for total custom intervals.-With dynamic display, completely programmable interval system and displays the time in red.-Timer can save up to eight custom programmes. Dimensions: -Numbers of rounds are displayed in big electric green 4'' high numbers that can be seen from 20 metres away. The timer dimensions is 710x160x40mm and the weight is around 2.4kgs. The remote control needs 2xAA battery to power up. However, due to the forbidden policy, we will take the battery out of the remote. So, you need to purchase the batteries before you operate this timer. Please note: we recently updated the case, which is more durable and smooth. You will like it more!