Sprint Signal Pro (set, boom)
by: Daniel Kosztyla • 0
On your marks, set, boom! A must be for each athletes or sport freak who needs a extern starting signal. Train your starting moment and concentration
in almost real signal sign. Also perfect for starts with more than one athletes.
Everybody has to concentrated to the same signal. Tyson Gay or Usain Bolt would use it if they would know this apps exists.