Advanced Wireless Functionality: Equipped with a 2.4GHz wireless transmission system, the iT30Pro ensures reliable and seamless communication between the flash and camera, enhancing your experience High-Speed Sync: Capture fast-moving subjects with thanks to the High-Speed Sync feature, capable of speeds up to 1/8000s. This feature allows for better exposure in brightly lit conditions Long-Lasting Battery: The built-in lithium battery provides extended usage times, allowing photographers to longer sessions without worrying about power User-Friendly Interface: Navigate through settings effortlessly with the 2.8inch touchscreen display, designed for intuitive control and quick adjustments Compact and Portable: The iT30Pro's ultra- design makes it an ideal companion for on-the-go photographers who need reliable lighting solutions without the bulk Transmission range (.): 100m Channel: 32 groups: 01-32 ID: Off/01-99 Lithium battery: 7.4V, 900mAh Recycling time (1/1 gear): about 1.5 seconds Number of flashes (1/1 gear): about 560 times Energy saving: with standby/auto shutdown function Sync trigger method: hot shoe, 2.5mm sync cable Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use Applies to:for Color: A:Black Material: ABS Package Contents: 1 x TTL Flash Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.