(1) Vibration Test振动试验
To be no interference in operation after vibrations, 10Hz to 50Hz for 2 ho-urs full amplitude 1.52mm ,the sensitivity to be within ±3dB from initial sens-itivity，the measurement should be done  after 3 hours at the room temperature.
将没有操作干扰过的咪头，在10HZ到50HZ、1.52 mm全振幅下振动 30分钟后，试验后在常温下放置3小时后测试，灵敏度变化在±3dB内。
(2) dro Test跌落试验 
The microphone without packaged must be subjected to each 3 drops at three axises from the  height of 120cm to 2cm thick hardwood board, the sensitivity to be within ±3dB from initial sensitivity，the measurement should be done  after 3 hours at the room temperature.
不带包装的咪头经过从3个不同的轴面从120厘米的高度下落到2厘米厚的硬质木板上，试验后在常温下放置3小时后测试，灵敏度变化在±3dB内。
(3) High Temperature Test高温试验
To be no interference in operation after high temperature test 70±3℃ for 48 hours. The sensitivity to be within ±3dB from initial sensitivity, the mea-surement should be done  after 3 hours at the room temperature.
将没有操作干扰过的咪头在70±3℃高温下试验48小时，试验后在常温下放置3小时后测试，灵敏度变化在±3dB内。
(4) Isotherm & ISO-humidity Test恒温恒湿试验