PiXAPRO Li-ion580 II TTL Speedlite

Features

-TTL Auto Exposure
-Built-In 2.4GHz ST-III S Receiver
-Fast 1.5 second recycle times at Full power
-Approximately 650 full powered flashes
-Rechargeable Li-Ion Battery with a power capacity of more than 12x AA batteries
-High-Speed Sync, and Rear Curtain Sync mode
-Multi-flash Mode
-Built-in Overheat Protection
-Auto-Zoom Feature
-Micro USB Port for Firmware Updates

Li-ion580 II C (For Canon)
https://www.essentialphoto.co.uk/product/pixapro-li-ion580ii-c-speedlite-with-rechargeable-battery-built-in-st-iii-receiver-and-high-speed-sync-for-canon/

Li-ion580 II N (For Nikon)
https://www.essentialphoto.co.uk/product/pixapro-li-ion580ii-n-speedlite-with-rechargeable-battery-built-in-st-iii-receiver-and-high-speed-sync-for-nikon/

Li-ion580 II S (For Sony)
https://www.essentialphoto.co.uk/product/pixapro-li-ion580ii-s-speedlite-with-rechargeable-battery-and-built-in-st-iii-receiver-high-speed-sync-for-sony/