Here is the info about Pixel Enterprise Limited Company that  wiress trigger TR-332,TR-331 manufacture company

The products mainly use for DSLR camera and those brands are Canon, Nikon, Sony, Pentax, Olympus, Panasonic, Samsung and other well-known brands. Our product type is camera shutter switch, flash trigger, speedlight, GPS, wireless image transmission, battery grip and other professional accessories. The products are widely used in studio, journalists, advertising, outdoor shooting, enthusiast …etc.

PIXEL ENTERPRISE LIMITED is a professional photographic accessories manufacturer. Our target is focus on technical improvement and quality management. We had a perfect development, design and production system; these made our technical and product quality are the best in the same industry. We strive to create more convenient and advanced photographic accessories depending on the new technology and new product .

The products mainly use for DSLR camera and those brands are Canon, Nikon, Sony, Pentax, Olympus, Panasonic, Samsung and other well-known brands. Our product type is camera shutter switch, flash trigger, speedlight, GPS, wireless image transmission, battery grip and other professional accessories. The products are widely used in studio, journalists, advertising, outdoor shooting, enthusiast …etc.

We stick to the principle of working with customers for mutual benefit and common development  with the best quality products, good service and technical support.

Global : http://www.pixelhk.com/

English Site : http://www.pixelhk.com/en/about.asp

Chinese Site : http://www.pixelhk.com/cn/about.asp

Contact :

PIXEL ENTERPRISE LIMITED Website:www.pixelhk.com Email:pixel@pixelhk.com

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The new Pixel Enterprises TR-331 (for Nikon) and TR-332 (for Canon) consist of a transmitter only (TX) component and a receiver only (RX) component which use CR-2 lithium batteries but no transceiver to allow use of the speedlight on the camera itself (which is a real pity – I hope they will make a transceiver version).

They differ from the Pocket Wizard Flex TT5 in that they use the 2.4GHz radio frequency and thus do not need different models for each region of the world (but perhaps there may be interference with other 2.4GHz devices such as portable phones), and although they support High Speed Sync (HSS) flash to 1/8000th sec, they do not appear to have Pocket Wizard’s Hypersync mode, and they do not appear to require use of a laptop and USB connection to program them (but I presume they are much less sophisticated devices and thus less versatile).

They have 15 channels, and are said to operate up to 65 metres, support auto-focus assist, and also have a PC sync socket to fire studio strobes or manual flashes

Now if only they would bring out a much needed Olympus model.

More information on their website.

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Brand Name: Pixel
Color: Black
Power: CR2 Lithium battery
Type: TR-332
Model Number: TR-332
Place of Origin: Guangdong, China
Brand Name: Pixel
Place of Origin: Guangdong China (Mainland)
Port:Shen Zhen
Payment Terms:T/T
Minimum Order Quantity:100 Piece/Pieces
Supply Ability:500 Piece/Pieces per Week
Package:Blister
Delivery Time:After the payment received

Canon Flashgun TTL Trigger
-The max sync speed is 1/8000s
-Multi-control is available.
-15 selectable channel
-Distance:65m

l .TR-332 is using FSK 2.4GHz frequency channel, 15 selectable channels.
2.Operating distance range is 65M or above.
3.The display is protected by coating; its not easy to get scratch.
4.LCD is showing Channel, battery life and Function mode
5.Multi-control is available.
6.Through the camera to adjust the parameter of diferent flashgun
7.Compatible with all Canon EOS cameras.
8.Compatible with Canon flashgun such as 580EII,430EII.
9 .Support all of the shutter speed, the Max up to 1/8000 sec.
10.Available to use on the studio light through PC socket.
11.Transmitter stand-by time: 1000 hours above (CR2 lithium battery)
12.Receiver stand-by time: 300 hours above (CR2 lithium battery)
The full set included:
Transimitter   1PC
Receiver      1PC
PC + 6.3 Cable  1PC
User Manual   1PC
CR2 Lithium Battery  2PCS

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Item No.: TR-332 / Type: TR-332

Product Info.: TR-332(Flash gun TTL Trigger for Canon)

Product Introduction

1.   TR-332 is using FSK 2.4GHz frequency channel, 15 selectable channels.

2.   Operating distance range is 65m or above.

3.   The display is protected by coating; it’s not easy to get scratch.

4.   LCD is showing “Channel” , “battery life” and “function mode” .

5.   Multi-control is available.

6.   Through the camera to adjust the parameter of the flashgun.

7.   Compatible with all Canon EOS cameras .

8.   Compatible with Canon flash gun such as 580EXII，430EXII and studio light.

9.   Support all of the shutter speed, up to 1/8000 sec.

10. Available to use on the studio light through PC socket .

11. Transmitter stand-by time : 1000 hours above (CR 2 lithium battery).

12. Receiver stand-by time: 500 hours above (CR 2 lithium battery).

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