The audience of a regular digital billboard is 50-150k people per https://t.co/ECHRbyUR7O order to create a network with an audience of 10 million people, need to connect 200 screens. Need $ 100k ~ $ 200k of investments
Over the period of 4 years, Ledder Technology aims to establish the biggest patent database in the digital OOH advertising industry. https://t.co/GLWTIF3CbA
7 reasons to invest in ledder:
Cool team;
The revolutionary technology;
Powerful patent protection;
Transparent business model;
Tokens convertible to shares;
Best development strategy;
Working prototype. https://t.co/C1Ciz3Tlzg