The Dot Line RS-RT05TS4C 4 Channel Wireless Transmitter for Sony is an ideal way to eliminate a tangle of PC cords and achieve off-camera functionality and effects with your flash. The low profile transmitter slips quickly onto your Sony "A" series camera's hot shoe and triggers a flash up to 100' away connected to an optional receiver. The transmitter is rated for 20,000 exposures on a single 12V battery (included) thanks to the power-saving standby mode. A digital readout window displays which of the 4 channels you are using. This listing is for the transmitter only. It requires a receiver for use.
Note: Transmitter only. See BH# DORSRT05R4C for a compatible receiver.