Selling because I no longer need it. New, unopened product. I only know what is stated in the information below, which was provided at the time of purchase. --------------------------------------------------- [Japanese Instruction Manual] Godox iT30Pro N Camera Flash iT30Pro-N Touchscreen Color Screen TTL On-Camera Flash Compact yet high-performance, 560 full power flashes, supports 2.4G wireless master and slave mode, S1/S2 light control Compatible with Nikon cameras, 120g Color: Black Brand: GODOX Compatible Mount: hotshoe, Nikon Flash Sync Speed: 1/80000 [Easily achieve ideal lighting with TTL auto flash control] Equipped with TTL auto flash control, automatically analyzes the shooting environment and provides optimal flash output. [Provides a communication range of up to 100m with a 2.4G wireless communication system] Equipped with a 2.4G wireless system, synchronizes multiple flashes within a range of up to 100m, making wireless multi-flash photography easy. [Supports global shutter for high-speed shutter synchronization up to 1/80000 second] By combining with a global shutter camera, flash photography is possible with a high-speed shutter of up to 1/80000 second. More efficient than conventional high-speed sync (HSS), allowing for high-precision shooting of fast-moving subjects. [Built-in lithium battery (7.4V/900mAh) allows for long shooting times] Built-in 7.4V/900mAh lithium battery, can be used for approximately 560 full power flashes. Full charge in approximately 1.5 hours. [Widens the range of shooting with various flash modes and customization settings] Supports TTL mode, manual flash mode, and multi-flash mode, allowing you to freely set the flash according to the shooting scene. How to enable High-Speed Sync (HSS): To use HSS with the IT30PRO N flash, you need to enable the "Auto FP" setting on the camera. Please follow the steps below to set it: MENU > Custom Setting Menu > e: Bracketing/Flash > e1: Flash sync speed → Set to "1/200s (Auto FP)" or "1/250s (Auto FP)" 87125