Vello Vello FreeWave LR Receiver For Use with FreeWave Flash Trigger LR | 2.4 GHz Range: Up to 600' | Flash Sync Speed of Up to 1/250s Eight Channels | Compatible with Most Hot Shoe Flashes LED Indicators Includes: 3.5 to 1/4" Monoplug Adapter, 3.5 to 3.5mm Sync Cable, 2 x AA Batteries, Lanyard, Limited 1-Year Warranty