This is an audio ultrasonic speaker unit 3840 waterproof piezoelectric audio speaker
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
- Dimension:38mm X H12.4
- Weight(MAX): 5.0 gram
- Resonant Frequency:2.5-50KHz
- Rated Voltage(Vrms):2.83
- Operating Voltage (Vrms):1~10
- Max. Current Consumption at Rated Voltage (mA):MAX 30
- Capacitance at 100Hz (pF): 80000+/-30%
- Min. Sound Output at 30cm at Rated Voltage (dB): MIN. 90
- Operating Temperature:-20 ~ +60
- Storage Temperature:-30 ~ +70
- Color:Black
- Paper Cone: paper cone
- Environmental Protection Regulation: RoHS
WARNING
