348C is furnished with a 400mAh rechargeable lithium battery which enables the microphone to work for approximately 8 hours after every full charge. Moreover, 348C is capable of working and being charged at the same time. Its electric quantity can reach 50% within 40 minutes. Comparing with homogeneous lavalier mics which generally require more than two hours for a full charge, the battery capability of 348C is remarkable for it just requires an hour and a half. For those who need to record for a long time, 348C is the best digital wireless microphone which guarantees protracted recording.