The AirLine Micro Camera Wireless System utilizes the latest in lithium-ion battery technology and high-quality audio and RF components, representing a breakthrough that is ideal for all video camera applications requiring outstanding audio, including DSLR video.The result is our smallest wireless system ever.To eliminate continually changing batteries, Samson has designed this wireless system to be fully rechargeable with lithium-ion batteries for both the AL2 transmitter and AR2 receiver.The AR2DT double-docking station provides power to both units via a USB DC input, as well as a 3.5mm balanced audio output for the receiver.With AirLine Micro, the days of replacing batteries in your wireless camera system are over.AirLine Micro employs the AL2 beltpack transmitter for complete freedom and mobility.The transmitter features an excellent sounding LM10 omnidirectional lavalier mic.In addition, the unit features single button operation for power, mute and volume, all of which can be easily monitored via a multi-color LED.The AR2 receiver boasts meticulous engineering that provides professional sound reproduction for your videos.Like the AL2 transmitter, the AR2 houses a rechargeable battery that will offer up to eight hours of operation.Due to its small profile, the unit is perfectly compatible with many of today’s popular DSLR cameras, along with smaller camcorders.As such, the AR2 can also be inserted into the included hot shoe mount and attached to your camera for additional versatility.Video capable DSLR cameras continue to grow in popularity between professional and amateur filmmakers.While the video content produced by these cameras is of exceptional HD quality, their sound recording capabilities have not been as flexible.Filmmakers can seamlessly attach AirLine Micro’s AR2 receiver to the top of their DSLR cameras via the included hot shoe mount.The AL2 transmitter is just as easy to adhere to any film subject with its built-in belt clip.From there it’s LIGHTS, CAMERA, ACTION… AND SOUND!.