YONGNUO YN560 IV Wireless Flash Speedlite Master + Slave Flash + Built-in Trigger System for Canon Nikon Pentax Olympus Fujifilm Panasonic Digital Cameras - Imported from UK Ambient Light Convenient On-board Controls: Pick up

Convenient On-board Controls: Pick up from the dock to automatically answer an incoming call

4 AA batteries

The WeMo Motion will sense movement within a 10 feet range

Dynamic & Magnetic design

The unit is constructed with caster wheels at the bottom to ensure the best of mobility

YONGNUO YN560 IV Wireless Flash Speedlite Master + Slave Flash + Built-in Trigger System for Canon Nikon Pentax Olympus Fujifilm Panasonic Digital Cameras - Imported from UK Ambient Light Convenient On-board Controls: Pick upBRAND: YONGNUO MODEL NO: YN560 IV Wireless master mode with 3 groups and 16 channels for wireless control of other YN560 IV as well as YN660, YN 560 III, RF 603 II and RF 605. Wireless slave mode allows the speedlite to be triggered by other YN560 IV flash lights or YN 660, YN560 TX, RF 603 II and RF 605. Multi stroboscopic mode of up to 8 flashes per second (power must be 1 8 or lower) as well as Master, Manual, S1 and S2 optical trigger modes.