Miniature thin film loudspeaker

The utility model relates to a micro membrane loudspeaker, belongs to the field of electro-acoustic communications technique, comprising a vibration membrane, a voice coil connected on bottom terminal of the vibration membrane, and assembled into the interval between a block and a rear cover, a magnetic with one side attached to the block, and the other side attached to the bottom of the rear cover, and a bottom plate mounted on the rear cover. The loudspeaker is characterized in that 11 discharge holes disposed on the rear cover, with 10 thereof having sound mixing paper joint thereon, so that the micro loudspeaker has gentle bass, mellow mediant and sonorous treble, avoids noise and shock sound. The product has a relatively low low-frequency resonant frequency, with F0 of 200Hz plus or minus 20 percent, is not broken in 96H white noise load test, can bear 18 times of drop test of 1.52 meters. The product has a wide application range, a long life, and is valuable to popularize.