Powered by two AA batteries, you can operate the SMX-30 microphone for approximately 24 hours with no degradation of sound quality. The battery-indicator LED light lets you know when it's time to change batteries with up to a 1-hour warning beforehand.
Finally, an integrated shock-absorbing shoe mount isolates the SMX-30 microphone from camera-motor/handling noise. The mount is designed to fit the standard camera shoe and comes with 1/4"-20 threads at the bottom for mounting to boom poles and other camera accessories. A foam windscreen and a carry pouch are also included.