【Multifunctional i-TTL Camera Flash】 This speedlite boasts 76Ws maximum output, GN60, 5600K±200K cool daylight, 1/180s-1/20000s flash duration, and 1.5s recycle time. The 20-200mm focal length adjusts automatically or manually. Powered by a 7.2V 3000mAh rechargeable battery, it offers 600 full power flashes and fully charges in 2.5h via 5V 2A USB (charger not included). Firmware updates supported via USB C. NOTE: For optimal battery longevity, please fully charge the device before first use 【New UI/TCM Switch/Flexible Head】 The HD LCD screen and new UI allow easy use. Convert between i-TTL and M modes with the TCM switch for precise flash metering. The powerful LED modeling lamp features 10 dimming levels for accurate flash preview. The flash head can tilt -7°-120° and turn 0°-330° for flexible flash bouncing 【Multiple Modes & 1/8000s HSS】 The flash provides i-TTL (auto), M (manual), and RPT (stroboscopic) modes. The i-TTL mode supports ±3 (19 levels) exposure compensation, the M mode supports 1/256-1/1 (81 levels) output adjustment and S1/S2 optical slave functions, and the RPT mode enables custom stroboscopic flashes up to 100 times at 199Hz. 1/8000s HSS (high speed sync) and front/rear curtain sync are also available 【Built In 2.4G Wireless Q System】 With NEEWER 2.4G Q System, the flash has 4 master groups (M/A/B/C), 5 slave groups (A/B/C/D/E, D/E for QPro triggers), 32 channels (1-32), and 99 IDs (1-99), compatible with the QPro-N Trigger (sold separately) for wireless flash control. It can work as a master/slave unit for other Q system flashes and allows wireless flash sync within 328'/100m (no obstacles) 【Compatible with Nikon Cameras】 This camera external flash speedlight accessory is compatible with Nikon Z9 Z8 Zfc Z50 Z30 Z5 Z6 Z7 Z6II Z7II D4 D5 D6 D60 D70S D90 D100 D200 D300 D610 D700 D750 D780 D800 D850 D3100 D3200 D3300 D3400 D3500 D5000 D5100 D5200 D5300 D7100 D7500 (NOT compatible with D810)