Brand New! Hosa Technology GPP-419 Overview This Hosa Audio Adapter female end accepts a mono signal and applies it to both Tip and Ring contacts at the male end. Use it to send a mono singal to both left and right contacts in a stereo 1/4" jack. This adapter can also be used to "trick" and audio mixer's insert (send/return) jack into behaving like a direct output. - All international buyers are responsible for all tax, duties and customs fees.