Yongnuo YN560 IV Manual Speedlite

The Yongnuo YN560 IV is the world's best-selling budget manual speedlite. It combines a solid GN58 (ISO 100 · 105mm) output with a built-in 2.4G radio that works as both a transmitter and receiver — control other YN560-series flashes right from the unit, or fire it from a YN560-TX / RF-603 / RF-605 trigger.

• Guide Number: GN58 (ISO 100 · 105mm)
• Manual + Multi (stroboscopic) modes
• Built-in 2.4G radio — transmitter AND receiver
• S1/S2 optical slave modes
• Flash coverage: 24–105mm (manual zoom)
• Recycle time: ~3s at full power
• Power: 4× AA batteries
• Universal hot shoe — Canon, Nikon, Sony (via adapter), Fuji, etc.