Check the listing for details. AODELAN Wireless Flash Trigger TTL Speed Sync E4 AODELAN Radio System. Color: Black, Condition: Open box. Listed at 95.00 USD. Open box, unused, no box or instructions, sold as shown on pictures. The product is tested and working properly. Free shipping! The AODELAN Wireless Flash Trigger TTL Speed Sync E4 is a radio system designed specifically for Sony cameras in the E4 series. This black flash trigger is compatible with the AODELAN E4 TTL model and offers wireless functionality for synchronized flash lighting. Manufactured in China, this device allows for remote triggering of flash units for professional lighting setups in photography and studio settings. Perfect for photographers looking for a reliable and efficient way to control their flash lighting, the AODELAN Wireless Flash Trigger TTL Speed Sync E4 provides a seamless wireless solution for creative lighting techniques.