Output power: 70W
THD: <0.1%
Frequency responses: 50Hz to 20kHz, ± 3dB
Audio input: wireless receiver/type/DVD/USB/SD/microphone/external audio source
Speaker: 8 inches full range speaker
Power and voltage: 220V AC/50Hz or 110V/60Hz available
Built-in rechargeable battery: 2 x 12V/5Ah
Battery available time: 4 hours (amplifying) and 3 hours (DVD playing)
Wireless receiver: 700 to 800MHz (UHF)
Wireless microphone: collar clip/handheld MIC/headset MIC
Wire microphone: all kinds of microphones
More Portable speakers with UHF Wireless and DVD player available