With the backlit LCD display and quick-change buttons adjustments are fast and easy. High-speed and second curtain sync are supported in this 4-channel, 2.4 GHz transmitter and receiver set. Shoot at maximum shutter speeds of 1/8000 s.
Phottix Strato TTL Flash Trigger specs:
Transmitting power: 10dBmDistance: 100m+
Frequency: 2.4GHz
Channel: 4 channels
Antenna: Built-in PCB antenna
Input voltage: 2.2V-3.2V
Flash port voltage handling: Transmitter 6V; Receiver ?300V
Batteries: 2x AA batteries; 5V DC on Receiver (external power port)
Max sync speed: 1/8000s
Output: hot shoe, 3.5mm (Receiver)
Input: USB port (transmitter and Receiver)
Weight (Transmitter): 74g
Weight (Receiver): 72g
Dimension (Transmitter): 92.5 x 47.8 x 45.5mm
Dimension (Receiver): 93.3 x 46.7 x 45.4mm
(Source)