Extension Cable for Sony Remote Controls RM-VPR1, VCT-VPR1, VCT-VPR100 or JJC SR-F2/TP-F2K. USB jack can be used for PC connection (use with Sony Remote Control Software) and/or camera charging. Connect one end directly to camera and other end to Sony/JJC’s Remote Controller. Connect any micro-USB cable to micro-USB jack and other end to PC (USB cable not included). This is the longest available extension cable for Sony/JJC remotes on market.