The MOTOROLA E2 does not decompress the chip, but uses Apple's decoding software Linux system audio decoding, and some reports are called E2 built-in audio hard decoding chip, the so-called music chip.
The advantage is that the sound quality, musical effects, EQ, bass, Bluetooth stereo, FM radio and other functions are very good, the only drawback of E2 music is that the external playback is not stereo