Features: With the characteristics of high brightness, quick rebounding and multifunction, it provides excellent light control experience for photographers. Adopt advanced wireless systems, support for full ETTL II automatic exposure and manual, and realize synchronization . 2000mAh battery. Unique circular design provides soft and uniform light effect. Suitable for professional and amateur photographers, especially photographers who like indoor and outdoor portrait photography and wedding photography. Suitable for weddings, parties, commercial photography. By adjusting the angle and intensity of light, we can create a variety of photo effects. Specifications: Component:Metal Type:V1S/V1C/V1N/V1F/V1O Size:Approx.2.5x2.50cm/0.98x0.98inch Note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item. Package includes: 1Pc Hot Shoe