Specification: Condition: 100% Brand New Model: Metal+Plastic Suitable for: For Nikon SB-900, SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24 For Canon 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX/EXII, 430EZ, 420EX, 420EZ, 380EX For Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT For Olympus FL-50, FL36 For Sigma EF-500 DG Super, EF-500 DG ST, EF-430 For Sunpak Auto 2000DZ, 622 Pro, 433AF, 433D, 383, 355AFm 344D, 333D For Yongnuo 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: 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.?Package Include?- This set includes 1 transmitter, 2 receivers and 1 sync wire cable. ?Anti-interference?- With transmission distance up to 30 meters, it boasts strong anti-interference ability, no direction or angle limit. Operate frequency 433MHz frequency and 16 independent channels. ?Synchronous Speed?- Low voltage trigger(5V-12V), sensitive response, no strobe, enjoying a maximum synchronous speed of up to 1/250 seconds. ?Standard Hot Shoe?- This flash trigger can work with all camera with stand hot shoe mount. And equipped with PC synchronous output expansion interface, with 3.5mm or 6.35mm pc cable can be compatible with more flash. ?Group Flash Function?- 4-bit coding, 16 combinations, can use the same type of flashing trigger to control up to 16 flashes on the same occasion without interference.Country of Origin: China. Manufacturer: Serounder. Date First Available: March 22, 2019. Best Sellers Rank: #54 in Camera Flash Synch & PC Cords. Customer Reviews: 4.5 out of 5 stars 3 ratings 4.5 out of 5 stars. : B07PFVBWQV. Item Weight: 3.87 ounces. Product Dimensions: 4.53 x 3.54 x 1.57 inches.