• Fires up to 3 speedlights at once
• 16 Channels
• 1/250s max. sync. speed
• 300' / 100m range
• Includes 3-mReceiver with 2 AAA batteries
• Includes mTransmitter with 23A battery
• Receiver has mounting hole for umbrella and mounts to most light stands

mTransmitter specs:

• 2.4GHz operating frequency
• 2.5mm sync. socket
• Weight: 1.6 oz / 46 g
• Dimensions: 2 11/16" x 2 1/16" x 1 5/8" / 68mm x 52mm x 41mm
• Power source: 1 x 23A battery

3-mReceiver specs.

• 2.4GHz operating frequency
• Weight: 10.9 oz / 310 g
• Dimensions: 7 1/4" x 3" x 1 3/4" / 185mm x 75mm x 45mm
• Power source: 2 x AAA batteries

Note: Weight and dimensions do not include batteries or cords.