Phottix Varos Pro S Multi-Function Flash Shoe Umbrella Holder Travel & Universal the drive units installed are

the drive units installed are extremely powerful and robust stepping motors with Dual Syncro Drive™

The Dually Charger can be used with a USB AC Adapter (not included)

Using the latest technology

and on an APS-C sensor

high resolution and natural bokeh

Phottix Varos Pro S Multi-Function Flash Shoe Umbrella Holder Travel & Universal the drive units installed areThe patented Phottix Varos Pro S Umbrella Holder was designed by professional photographers to mount a hot shoe flash and umbrella to a light stand or tripod. Perfect on location or in the studio, umbrellas provide soft light, great for portraits or special effect. The new Varos Pro is 300% stronger than previous versions and features Aluminum alloy body with a metal cold shoe, 3 8" and 1 4" female threaded insert, male 3 8" and 1 4"screws included.