Model: Aputure CR3C - Color: Black + red - Plastic material housing - Wired and wireless technology combination - Wired control: - Control range: 80cm / 2.62ft - Time counting: Yes - Bulb lock: Yes 3 seconds press - Wireless control: - Method: IR (infrared) - Control range: 5~10 meters / 16~32ft - Time counting: No - Bulb lock: Yes - Powered by 1 x CR2032 battery (included) - Comes with connection cable (80cm) - Compatible with Canon EOS 7D / 5D Mark II (All of camera compatible with canon RC1 / RC5 IR remote & RS-80N3 remote cord) - Allows freely switch between the cordless IR system or the cable system to meet the demand in a variety of shooting environments