Features: 1. Off-camera TTL flash; 2. Support AF auxiliary light; 3. Extended cable length up to 3m, make photography light operated easier; 4. TTL connection with flashgun lockable and tightly; 5. High-tech material, excellent touch feeling. Description: This ttl off-camera flash trigger cable, mainly used for the situation while flashgun is taken off from camera hot-shoe for TTL flash exposure. The TTL cable supports AF auxiliary light, make photographers easier to adjust the light direction according to their own requirement. Specification: Compressed spring length: 50cm Extended cable length: 300cm Weight: 190g Compatibility model: Canon camera and flashgun . Package includes: 1 X TTL off-camera flash trigger cable. Goliton® is a registered trademark protected by the US Trademark Law. Goliton® products are sold by authorized sellers only.