| System consists of built-in wireless receiver, powerful amplifier and rechargeable explosion-proof battery- The CD player is capable of playing all kinds of audio discs including 8cm,12cm & MP3 format and it has an ESP(Electronic Shock Proof) 40 sec mechanism- The Cassette player is a fully mechanical type with functions including auto-reverse,record,play,pause,rewind,fast forward- It uses the wired and wireless microphone at the same time and has independent volume control of them- Public address system that is highly efficient, with loud and clear sound- Automatic Battery Monitoring & Recovery System | 
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