Samson EX20    
Available manufacturer's documents for this product:
 - Samson EX20 Monitor Overview (html) English
 - Samson RB2030 Battery Overview (html) English
 - Samson EX20 Monitor Datasheet (pdf) English
 - Samson EX20 Monitor User Manual (pdf) English
 - Samson RB2030 Battery User Manual (pdf) English