This is an ultrasonic buzzer eared speaker waterproof 51mm used as ultrasonic mosquito repellent.
Ultrasonic Buzzer Speakers are frequently used to generate sound in digital quartz watches and other electronic devices, and are sometimes used as tweeters in less-expensive speaker systems, such as computer speakers and portable radios.
Specifications:
- Material:ABS Plastic
- Speaker diameter:51mm
- Total height:18mm
- Resonant Frequency:25+/-5KHz
- Rated Voltage(Vp-p):5.0
- Operating Voltage (Vp-p):1~30
- Max. Current Consumption at Rated Voltage (mA):2.0
- Capacitance at 1000Hz (pF): 100000+/-30%
- Min. Sound Output at 10cm at Rated Voltage (dB):85
- Operating Temperature:-20 ~ +70
- Storage Temperature:-30 ~ +80
- Color:Black
- Environmental Protection Regulation: RoHS