Specification:

• Wireless R.F. Remote Range 300 mtr.
• Shockproof/ Waterproof / Rustproof housing.
• 2 Digit LED Scoring, Real time Clock, Serving & Games display.
• Operating Voltage 125 to 240 AC/50 Hz.
• View distance 125 ft. 
• Programmable Team name & Moving Display available separately.
• https://youtu.be/ry94erUsMTU