Connect the MZ-3 to a USB computer port or USB power adapter for charging. A full charge provides up to 300 hours of active use. Connect the MZ-3 to a USB port for charging. The red light (LED) indicates the progress of the charge. The green LED indicates that the transmitter is fully charged. The MYZONE application shows the use of the battery in training tiles. Technical Characteristics Dimensions 4.25 x 1.65 x 0.94 Output port: USB
