The AirLine Micro Wireless Camera 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.SPECIFICATIONS:AirLine Micro Wireless Camera SystemWireless system with micro-sized AL2 transmitter, AR2 receiver and double dockTone squelch and auto mute for clear operationIncludes a system carry case, hot shoe mount, 3.5mm and XLR camera connectors, AC adapter and charging cablesAL2 TransmitterBeltpack transmitter and LM10 omnidirectional lavalier microphoneLithium-ion rechargeable battery (7-8 hours of operation)USB DC input for rechargingSingle button operation for power, mute and volumeMulti-color LED displaying RF, low battery and powerAR2 ReceiverLow-profile wireless receiver (2.36" x 1.67" x .51")Lithium-ion rechargeable battery (7-8 hours of operation)USB DC input for power and recharging3.5mm balanced mic/line level outputMulti-color LED displaying RF, low battery and powerAR2DT Double DockProvides secure base for AL2 transmitter during recharging and AR2 receiver during operation and/or rechargingUSB DC input for power and recharging (cables included)3.5mm unbalanced audio output