The YN-622C II E-TTL wireless flash triggers from Yongnuo offer flexibility in photography. They are compatible with Canon E-TTL / E-TTL II cameras and support communication protocols 622 and 560-RX, making them suitable for various flash units.

One trigger mounts directly into the hot shoe and transmits at a frequency of 2.4 GHz, with a range of up to 100 meters for triggering remote flashes. It features capabilities such as group ratio support and multi-flash. The triggers also have a hot shoe and a PC sync port, allowing connection to studio flash or lamp.

The Super Sync function enables achieving faster sync speeds, and the options for TTL and manual shooting modes provide full creative control. They support 7 channels and 3 groups for easy and efficient setup of multiple flash units.

The LED indicators show the settings and facilitate adjustments, while the AF assist beam helps in low light conditions. There are multiple sync modes, including 1st and 2nd curtain sync. High-speed sync mode is also available and helps in bright conditions, with a maximum speed of up to 1/8000s. Each trigger operates on 2 AA batteries.