3d five-channel stereo earphone

A 3D five-channel stereo earphone, comprising:

• a rear housing (1), a frame (20) installed on the rear housing (1), a loudspeaker (4) mounted at a bottom of the frame (20), a front housing (5) installed on the rear housing (1);
• the frame (20) and loudspeaker (4) being sealed and installed in a cavity between the rear housing (1) and the front housing (5);
• the front housing (5) having an output (51);
• the frame (20) including several mutually isolated output channels connected to the output (51);
• the output channels having input holes disposed at the bottom of the frames (20) and on a same horizontal plane;
• the output channels having output holes disposed on an upper surface of the frame (20), and vertical distances between the output holes and the output (51) are different;
• wherein the frame (20) comprises a lower frame (2) disposed on the rear housing (1) and an upper frame (3) mounted on the lower frame (2);
• the first second, third, fourth, and fifth input holes (201, 202, 203, 204 and 205) are disposed at a bottom of the lower frame (2);
• the first output hole (206) is disposed at an upper surface of the lower frame (2);
• the lower frame (2) is formed with a first convex ring (21) disposed on the upper surface thereof, of which an upper port is the second output hole (207);
• the upper frame (3) is formed as a funnel shaped component and includes a first, second, and third cavities (311, 312 and, 313) isolated from each other and respectively connected to the third, fourth, and fifth input holes (203, 204, and 205);
• the upper frame (3) has a taper surface (31) disposed on a top thereof and a tube (32) disposed on a top of the taper surface (31);
• the third and fourth output holes (208 and 209) are on the taper surface (31) and respectively connected to the first and second cavity (311 and 312);
• the tube (32) is connected to the third cavity (313), and a port of the tube (32) is considered to be the fifth output hole (210).