TRIOPO TR-982IIIC Flash Light Speedlite for Canon (Black) Features 1. GN58, 180mm, ISO 100, supports multiple flash modes: TTL M MULT S1 S2 Master Slave. Highly sensitive sensor supports far wireless triggering distance. 2. Multi-contact hot shoe. With high-speed synchronization function, it supports 18000s trigger on camera and off camera. In high speed sync mode, using aperture priority for filling light for the shot subject, make your shooting more comfortable. 3. 2.4G wireless master control and slave, there is no directionality, and it can be used to trigger and flash off the machine. 4. Suitable for canon camera wireless flash system, realize machine TTL, manual and frequency flash. 0.1-3s recycle time, supports high speed continuous shooting. 5. The rotatable LCD screen is clear for displaying multiple readings, the buttons and knob can help you to adjust various settings quickly and easily. 6. Using strobe, a series of flashes can be used to move multiple images of an object over a photograph. Specifications 1. Material: Plastic 2. Flash Index: GN58 (180mm, ISO100) 3. TTL Mode: Compatible for Canon E-TTL 4. Flash Mode: TTL M MULT S1 S2 MASTER SLAVE 5. Zoom Mode: Auto zoom, manual zoom 6. Synchronization Mode: Front curtain synchronization, rear curtain synchronization, high-speed synchronization 7. Frequency Flash: Supports 1-199Hz 8. Flash Time: 1200s-120000s 9. Color Temperature: 5600 K +- 100 K 10. Call Back Time: 0.1-3s (power output 1128-11) 11. Wireless Flash: Built-in 2.4G, MASTER mode, SLAVE mode, S1, S2 12. Manual Flash: 8-level light control (11, 12, 14, 18, 116, 132, 164, 1128) 13. Flash Times: About 150-1500 times (different according to the battery, flash output 11-1128, using 2800mAh battery) 14. Adjustable Angle: Tilting angle: -70 degree-90 degree; Panning angle: 0-360 degree 15. Focal Length Range: 18-180mm 16. Power Supply: 4 x AA alkaline batteries (Batteries