供应语音识别传声器咪头4522mic

详情描述：

	

		

			

			Drop Test
			
			

			To be no interference in operation after dropped to concrete floor each one Time from 1 meter height at three directions in state of packing.
			
		
		

			

			Temperature Test
			
			

			

				After exposure at 85℃ for 72 hours, sensitivity to be within ±3dB from initial sensitivity.
			

			    (The measurement to be done after 2 hours of conditioning at 20℃)

			

				After exposure at -40℃ for 72 hours, sensitivity to be within ±3dB from initial sensitivity.
			

			    (The measurement to be done after 2 hours of conditioning at 20℃)