No sound comes out when the headphones were inserted into the slotRadio player

[slotmonsta]

A brand new slotRadio player might have a very tight headphone jack.  Because of this, we've seen users inserting the headphones only halfway into the headphone jack and assumes it is already fully inserted because users are worried if they push the headphones further in, it might break.  This is NOT the case. Headphones should be pushed further in, and a "Pop" sound is usually heard when it's inserted correctly.    Please see the following FAQ with an illustration of proper and improper headphone insertion.   Proper headphone insertion