Professional assembled insert cable with DieHard ONEHERO connectors / 6.5 mm stereo jack – 2 * 1/4″ mono jack. 3 m length. ONEHERO is a new series of premade cables and connectors with a unique and exclusive design, the result of PROEL R & D that once again, chose to invest resources in the design of innovative and professional tools dedicated to the growing market demands.