สถานที่กำเนิด
Guangdong, China
Fluctuating audio frequency
40 to 16500Hz
Receiving audio signal amplification
≥ 40db
Battery
DC 1.5V AA battery (not included)
Output Impedance
1K short distance/long distance 2.3k
Sensitivity
10 to 15mV short / Pa, 60 to 0 mV / Pa
Microphone
42cm long shaft