Meeteasy ® The Mid2 EX conference phone has 3 built-in omnidirectional microphones and 2 extended cable microphones, which can fully meet the needs of large conference venues (recommended for 25 people), ensuring that any angle of speech is crystal clear and natural. The optimal sound collection distance is 4 meters. It can hold both telephone conferences and online conferences simultaneously, achieving a hybrid network of PSTN and INTERNET for three party interactive conference calls.