BLX2/B58 BLX2 Handheld Transmitter with BETA58A Capsule K3EDynamic vocal microphone precision engineered for professional sound reinforcement with analogue handheld transmitter. The BETA58A with BLX2 handheld transmitter is the dynamic vocal microphone precision engineered for professional sound reinforcement. You will get up to 14 hours of continuous use using 2 x AA batteries (included) and an operating range of 100m. Product Features Supercardioid Dynamic Microphone Power and battery status LED Adjustable