433MHZ 16 Channel Wireless Flash Trigger Set with 1 Transmitter 2 Receivers 1 Sync Wire Cable Features: This set includes 1 transmitter, 2 receivers and 1 sync wire cable. Features 433MHz frequency and 16 independent channels. With transmission distance up to 30 meters, it boasts strong anti-interference ability, no direction or angle limit. Universal hot shoe. Suitable for other flash units with universal hot shoe. The receiver trigger is powered by dry batteries, enjoying a maximum synchronous speed of up to 1/250 seconds. Specification: Model: Metal+Plastic Suitable for: For SB-900, SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24 For 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX/EXII, 430EZ, 420EX, 420EZ, 380EX For AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT For FL-50, FL36 For EF-500 DG Super, EF-500 DG ST, EF-430 For Sunpak Auto 2000DZ, 622 Pro, 433AF, 433D, 383, 355AFm 344D, 333D For YN-460II YN-468 YN-560 YN-462 YN-465 YN-467 Battery for transmitter: 23A 12V mini batter (the battery included) Battery for receiver: 2* 1.5V AAA battery (the batteries not included) Operate frequency: 433MHZ Outdoor working distance: up to 30 m / 90 ft (open area, barrier-free) Indoor operating distance: up to 25 m / 75 ft Channel: 16 channels Sync speed: 1/250s Color: Black Package Weight: Approx.11.5*9*4cm / 4.53*3.54*1.57in Package Weight: Approx.111g Package List: 1* Transmitter 2* Receivers 1* Sync Wire Cable 1* English Manual Notice: Not suitable for special hot shoe. This flash trigger does not support TTL. Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.