This WANSEN PT-04GY Universal 1-to-3 3 Receivers + Wireless Flash Trigger Pack for Nikon/Canon is highly appreciated and praised for its brilliantly stable performance and competitive price. Adopting 433M wireless frequency modulation to bring high stability， our wireless flash trigger pack is characterized by long standby time， 10，000 times cycling life， 30m remote distance trigging and strong anti-interference capacity. Its suitable height will bring no bad influence to shooting effect while the handy external FM switch saves you lots of time and energy. Best assistant! Never let it go!                                    Features             Adopt 433M wireless frequency modulation to bring high stability<br> Suitable height which will bring no bad influence to shooting effect<br> The tripod is fastened by the 1/4" screw nut so that the flashlight will not drop down due to looseness<br> Handy external FM switch， save lots of time and energy for operation<br> The receivers are powered by 2pcs AAA batteries， convenient for battery replacement<br> The tapping type hot shoe is uneasy to get loose<br> Long standby time， 10，000 times cycling life， 30m remote distance trigging and strong anti-interference capacity<br> Adapter needed for new released Sony camera<br> It can work with the camera with a hot shoe socket <br>                                                            Specifications             Brand     Wansen    <br> Model     PT-04GY    <br> Color     Black    <br> Material     ABS    <br> Quantity     1Set    <br> Compatible Brand     Canon， Nikon etc.    <br> Compatible Models     Universal    <br> Effective Distance     30m    <br> Wired/Wireless     Wireless    <br> TTL Mode     No    <br> Receiver     3Piece    <br> Channel     4    <br> Sync Time     1/250s    <br> Working Frequency     433MHz    <br> Working Voltage     3V    <br> Battery Model     AAA    <br> Battery Included or Not     Yes    <br> Remote Controller Battery     1 x 23A 12V Battery    <br> Weight     4.94oz / 140g    <br> Dimensions     (3.74 x 2.4 x 1.69)" / (9.5 x 6.1 x 4.3)cm (L x W x H)       <br>                                                             Package Includes            1 x Transmitter<br>3 x Receiver<br>1 x 2.5-Cable (30cm / 11.81")<br>1 x English User Manual<br>