Canon: http://www.bhphotovide
Nikon: http://www.bhphotovide
Sony Alpha: http://www.bhphotovide
Somy Multi Terminal: http://www.bhphotovide
Specs:
Frequency: 2.4GHz
Range: 320′
Channels: 16
Built-In Antenna
Dual-Function Release
Four-Second Delay Function
Multi-Exposure & Long Exposure Modes
Works Wired or Wirelessly
LED Indicators
Each Device Runs on Two AAA Batteries