Material: ABS material
<br />Specification: 78 mmx47mmx85mm
<br />Frequency response range: 100 Hz - 20 KHZ (Hz)
<br />Output power: 5 (W)
<br />Type: cable
<br />3 c range of rated voltage: dc 36 v and below
<br />Color: black, blue, green, red
<br />Scope of application: office, teaching, speech, etc
<br />Power supply: lithium batteries