Hähnel Viper

- For Canon cameras / flash guns & compatible models\n- ISM 2.4GHz digital transmission (more than 100M)\n- Digital Channel Matching provides reliable connections,\n- eliminating the risk of interference from other wireless\n- products within range\n- LCD Display, backlit, indicating groups A, B & C on/off and\n- flash power output settings\n- Each group can be turned on/off or flash power output\n- adjusted with individual control button on the Viper\n- transmitter\n- Viper Receiver has a 2.5mm socket and a Mini USB socket\n- to connect to studio lights\n- Mini USB socket - For software upgrade or external 5V\n- power supply\n- Powered by the most convenient power source\n- 2 x AA batteries (each on transmitter and receiver) for\n- approx 120Hr