Color Black Brand Wansen Model DC-04 Material ABS Quantity 1 Set Compatible Brand Nikon Canon etc. Compatible Models Universal Effective Distance 30 m Wired/Wireless Wireless Receiver 1 Piece Channel 4 Sync Time 1/250 s Working Frequency 433M Working Voltage 3 V Battery Model AAA Battery included or not No Remote Controller Battery Number 1 Other Features Transmitter Power: 23A 12V battery (included); Receiver Power: 1.5V 2 x AAA Battery (Not included); The remote trigger for studio flashes is used as the controller of synchronous trigger studio flashes of cameras. It consists of a signal sender and a receiver trigger and works by means of the frequency modulation wireless remote control. Packing List 1 x Transmitter 1 x Receiver (60cm cable) 1 x Connecting cable (30cm) 1 x 6.35 Connector