Hähnel Viper TTL Receiver - Sony

FEATURES:

• Use additional Receivers to trigger multiple flash units
• An unlimited number of Receivers will work with one Viper Transmitter
• Full wireless connectivity with the MODUS 600RT Speedlight
• Digital Channel Matching provides reliable connections
• Control Speedlight mode remotely
• Compatible with original speedlights
• microUSB socket for firmware upgrade
• 2.5mm socket to connect to studio lights 

FIRMWARE UPDATES:

ViperTTL_Son_Receiv_V22