
Phottix Laso TTL Flash Trigger_Receiver
Thank you for purchasing a Phottix Product.
Note: Before using the Phottix Laso Wireless Trigger, please read this instruction
manual carefully, while also referring to the instruction manuals of your camera, flash
and other relevant devices.
Warnings
1. This product is a precise electronic instrument. Do not expose to damp
environments or dust.
2. Please shut down the power of all devices when installing the wireless trigger.
3. Do not drop or crush.
4. Do not use the wireless trigger at flammable, explosive or high temperature
environment.
5. Do not use harsh chemicals or solvents to clean the body. Use a soft cloth or lens
paper.
6. Remove batteries from the wireless trigger if not being used for an extended
period.
7. Interference: The Phottix Laso wireless trigger transmits radio signals at 2.4GHz.
Its performance can be affected by electrical current, magnetic fields, radio signals,
wireless routers, cellular phones, and other electronic devices. Environmental
objects, such as large buildings or walls, trees, fences, or cars can also affect
transmission performance. If your wireless trigger can’t be triggered, move its
location slightly.
FCC Interference Statement:
This device complies with part 15 of the FCC Rules. Operation is subject to the
followingtwo conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC Radiation Exposure Statement:
This equipment complies with FCC RF radiation exposure limits set forth for an
uncontrolled environment. This device and its antenna must not be co-located or
operating in conjunction with any other antenna or transmitter.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help.
Phottix Laso TTL FLash Trigger For Canon/Receiver
The Phottix Laso receiver is used with non-wireless Canon ETTL Speedlites to
perform wireless radio-receiving control and triggering function. The receiver is
compatible with multiple wireless radio transmitting devices, including the Phottix
Laso transmitter, Canon ST-E3-RT Speedlite transmitter, and radio-enabled Canon
Speedlites.
Table of Contents
I. Parts
II. Preparation Before Use
III. The LCD Display
IV. Wireless Flash Shooting: Radio Transmission

V. Trouble Shooting Guide
I.Parts
1. Radio transmission confirmation lamp
2. LCD panel
3. Power button
4. Function button 1
5. Function button 2
6. Function button 3
7. Function button 4
8. Test flash button
9. Hot shoe mount
10. Batter compartment
11. Cold shoe/Tripod lug
12. Locking ring
13. 5V DC power port
14. 3.5mm output port
15. USB port
II. Preparation before Use
Installing the batteries