USB/SD card, with Equalizer, wired microphone/ guitar input Power: 40W Frequency range: VHF 210-270 MHZ one-driven-one

Popular portable active speaker  with strap 

Power: AC 185V~265V((50-60Hz),             built-in DC12V/2.6AH,             one rechargeable battery,            external DC 12V power inputFrequency range: VHF 210-270 MHZ                             one-driven-oneFrequency response: 50Hz-18KHz±3dBMIC effect: 25-50mWireless MIC: with one handheld MIC                     headphone(plus 40RMB)Power: 40WSpeaker: 6 inch gamutSensitivity: 10dBμV(S/N: over60dB)Oscillation: Quartz oscillation lock ±0.005%Case quality: wooden cases, wrap angle of metal

Popular portable active speaker with strap