Synchronization system: It allows a precise synchronization of Sessantaquattro+, Muovi+, Muovi, Quattro+ and Due+ deices possibly with other acquisition systems capable of receiving TTL pulses through a BNC connection. The SyncMini sends radio frequency (RF) commands and the wireless devices, when receiving a sync pulse, set a bit (bit 15, SyncBit) on the accessory channel 1 that can be used offline to re-align and compensare difference in the sampling frequencies.