Reliable wireless operation starts with batteries that are ready before the transmitter goes on. The LI-320 rechargeable lithium-ion battery is designed for the ATW-DT3202 handheld transmitter within the Audio-Technica D50 digital UHF wireless system, with 3200mAh capacity, 3.6V DC output, 7.92Wh energy and up to approximately 17.5 hours of runtime at the 10mW RF output setting. Rechargeable and replaceable, it can be charged while installed in the transmitter using the optional ATW-CHG6 charging station or separately with the ATW-CHGA6 external charger, making it a practical replacement or spare battery for professional D50 wireless systems.