Technical Data: 
Model: TT350o 
Compatible Cameras: Olympus / Panasonic Mirrorless Digital Camera 
Guide No. (1/1 output @105mm): 36(m ISO 100) 
Exposure control system: TTL autoflash and manual flash 
Flash exposure compensation(FEC): Manual FEB. : ±3 stops in 1/3 stop increments (Manual FEC.) 
Sync mode: High-speed sync (up to 1/8000 seconds),first-curtain sync, and second-curtain sync 
Multi flash: Provided (up to 90 times,99Hz) 
Wireless flash function: Master, slave, off 
Controllable slave groups: 3(A,B and C) 
Transmission range(approx.): ≤100m 
Channels: 16(1~16) 
Effective range (approx.): 
Center:0.6~4m/Periphery:0.6~2.5m 
AA batteries: Ni-MH batteries(recommended) or 2*LR6 alkaline batteries 
Recycle time: Approx.0.1~2.2 seconds(eneloop Ni-MH batteries of Panasonic).Red LED indicator will light up when the flash is ready. 
Full power flashes: Approx.210(2500mA Ni-MH batteries) 
Power saving: Power off automatically after approx. 60 seconds of idle operation.(60 minutes if set as slave) 
*Sync Trigger Mode: Hotshoe ,Optic triggering 
W*H*D: 140*62*38mm 
Weight without battery: 200g