They are widely used in a football match to remind athletes of the switch or the time of injury/stop.
Safe and high-quality lithium polymer battery, can be fully charged 3 hours, and work for two hours or more, according to normal frequency, once fully charged, can be used 12 times or more in football matches.
The LED football panel is incredibly easy to operate with a simple numeric membrane keypad for entering numbers on the screen while also designed with storage and key capability in 6 pre-programmed alternatives.
Exquisite design with pure aluminum frame frame;high safety performance/light weight and small size;
Package includes: 1x replacement display, 1x AC/DC adapter, 1x user manual