Portable Scoreboard: You can easily change the score with remote control from 60ft. Product size: 20*11*4.5cm, very easy to carry. The casing is made of aluminum alloy, which makes it portable and durable. Adjustable high brightness and volume: This table tennis scoreboard is equipped with a buzzer, which can make a sound when you press the remote control buttons, and the sound can be turned off. The brightness of the scoreboard is dimmable. The highest brightness allows you to see the score from 30ft away around your game. Suitable for many indoor games: Just like a score counter, this electronic digital scoreboard can be used for many indoor games, and for many ball games such as table tennis, volleyball, badminton, basketball, baseball, etc. You don't need to go to the table to change your score. How to power the scoreboard: The electronic scoreboard needs to use a 5V adapter to connect (not included), but is equipped with a 1.5m USB DC power cable. You only need to bring your own 5V mobile power supply for outdoor use. Connect the USB directly to your power bank and it can count the points of your sports and games at any time. Mounting method: The scoreboard comes with an installation tool that allows you to place the scoreboard on a table or floor, or mount it on a wall.