PA amplifier with digital MP3 record function

Model Number: SH-739-5 Key Specifications/Special Features: With USB/SD record function which 1GB can be recorded for 1,000 minutes and 16GB can be recorded for 16,000 minutes audio sound from wired microphone and wireless microphoneAudio inputs can be recorded in the USB and SD card, the files in the USB can be recorded to SD card and the files in the SD can be recorded to USBInputs: two wired microphone inputs and one AUX input and one 12V DC - 20A inputOutput: one AUX output and one external 8Ω output power 25 to 30W speaker outputBuilt-in features:FM/USB slot/SD card slotTwo wireless microphones (handheld, lapel microphone or headset microphone option)With tripod stand jackBuilt in 12V DC -10Ah x two pieces rechargeable batteriesMicrophone priority function RMS: 100W (maximum)Frequency response: 40Hz to 20kHzSpeaker: one 8Ω 12" woofer and one 8Ω 3" hornT.H.D.: less than 1%Wireless service range: 35m max in VHF/80m max in UHFFrequency channel: dual channelsDimensions: 425 x 330 x 600mm
Gross weight: 24.6kgs
Machine body material: ABS engineering plastic body and metal plate