Specifications 

1. Type

Type: On-camera Speedlite transmitter

Compatible cameras: EOS type-A camera compatible with E-TTLII/E-TTL autoflash

2. Radio Transmission Wireless Function

Exposure control system: E-TTL II/E-TTL autoflash, manual flash, stroboscopic flash, auto external flash metering ( Only when the flash mode is set to < GR>) Frequency: 2405- 2475 Mhz

Modulation system: Primary modulation: OQPSK, secondary modulation: DS-SS Channel: Auto, Ch. 1-15 Wireless radio ID: 0000- 9999

Slave unit control: Up to 5 groups (A/B/C/D/E), up to 15 units

Transmission distance: Approx. 30 m ( When there is obstruction, weather conditions, ambient interference would result in a shorter transmission distance.)

Flash ratio control: 1:8-1:1 - 8:1, 1/2-stop increments

Flash exposure compensation: ±3 stops in 1/3- or 1/2-stop increments

FEB: ±3 stops in 1/3- or 1/2-stop increments (when used with flash exposure compensation) FE lock: Press the cameras < M-Fn >, < FEL > or <。> button High-speed sync: Provided

Manual flash: 1/1-1/128 power (1/3-stop increments) Stroboscopic flash: Provided (1- 500 Hz)

Slave flash battery check: On the master units LCD panel, the charging indicator lights up,the slave units AF assist beam emitter blinks and the charge lamp lights.

Flash exposure confirmation: Flash exposure confirmation lamp lights Modeling flash: Fired with cameras depth-of-field preview button Linked shooting: Provided Customizable Functions: 9 

3. Power Source

Power source: 2 AA/LR6 alkaline batteries, AA/LR6 Ni-MH and lithium batteries also usable

Wireless flash shooting time:Approx.10 continuous hours,(Whenusing AALR6 alkaline batteries) Power saving: Can be set up in the custom menu standby time,during this period of time without operating equipment into standby mode

4. Dimensions and Weight

Dimensions: Approx.67.4 (W) x61.5 (H) x 77.4 (D) mm Weight: Approx. 110 g (excluding batteries )