Audio Monitoring : capaciot=r
Output : 10mw(earphone output)
              3W(speaker output)
Frequency Range : 100Hz-10KHz
SPL : >115dB 1KHz THD<1%
Reverberation : Echo
Battery : Build In Polymer Lithium Battery
Battery Capacity : 1000mAH
Charging Supply : DC5V
Battery Working Time : 3-5 Hours
Standard Of Implementation : GB 4943.1.2011