... 275 MM(6) Sensitivity: 91dB-SPL,1w,1m ((7) The most loudly output: 114 dB-SPL, 1 m (pink ... 2. Can support MP3, MP4, CD, the computer, all mobile phone, through the audio line played music.3. Built-in Lithium ... supply, easy to carry, a remote control.4. With FM function, can insert SD card, U plate, directly read ... so on, and make hard surface send out the music.(You put it in different material, and by ...