This is the Receiver only - Phottix Odin II Transmitter are available seperately. 

Introduced at Photokina 2014, there is no flash triggering system that is more anticipated than the Odin II. It is the result of operational requests from the thousands of happy Odin users who love their TTL flash systems and want even more. Phottix is delivering on all of its promises. And then some. 
 
Unrivalled Control and Streamlined User Interface
The Odin II gives photographers more control than they have ever experienced; control that is direct, logical, and fast.
 
A illuminated LCD panel shows all settings at a glance. Switch a Group, Channel and Digital ID from the screen. Displaying all the settings assures an easier and simpler viewing experience. 

Major Features

• Wireless 2.4GHz. TTL and Manual Flash Triggering
• 5 groups A, B, C, D, E
• 32 channels with User-set Digital ID
• High Speed Sync – up to 1/8000s*
• Second Curtain Sync (Nikon, Sony only)
• 2.4 GHz, Range 332ft (100m)
• Compatible with Mitros+, Odin II, Odin
• Firmware upgradable via built-in USB ports

More Channels and Digital ID
Pick from 32 channels. The first four channels offer three Groups and are compatible with the original Odin transmitter. Channels five through thirty-two use the new functionality of the Odin II receiver including user-set digital ID for the ultimate in secure triggering. 
 
High Speed Sync with TTL flashes, wire-connected, studio-type flashes enable flash photography at up to 1/8000 second for creative aperture effects and action stopping. 
 
A complete "Anything Goes" Ecosystem
The Odin II system is compatible with the original Odin system, Phottix Mitros+ speedlights, the award-winning Indra360 and Indra500 TTL Studio lights. Firmware upgrades for the Phottix Mitros+ and Indra360/500 will soon be available to take advantage of the new features of the Odin II.
 
The Phottix Lighting System offers solutions for every shooter. Hot Shoe flash minimalists can use the Odin II and the Mitros+. Photographers needing to overpower the sun can use the Phottix Indra, the Odin II and High Speed Sync features. Or these products can be combined creating the perfect lighting solution for challenging environments.

What’s in the box?

• Odin II Receiver
• 2x AA Batteries
• 3.5mm to 3.5mm cable
• 6.3mm adapter
• Lanyard
• Manual (USB Drive)
• Warranty Card
• Firmware Notice Card
• QC certificate