3PCS DC 3-24V 90dB Active Piezo Electronic Buzzer Beep Tone Alarm Ringer Continous Sound (Black) SFM-27-W black industrial2 Ensure a smooth and seamless

Ensure a smooth and seamless running experience

charger or 5V power sources

Fully automatic

47inch Grinding Sponge: Approx

You can charge the phone via the USB socket

3PCS DC 3-24V 90dB Active Piezo Electronic Buzzer Beep Tone Alarm Ringer Continous Sound (Black) SFM-27-W black industrial2 Ensure a smooth and seamless3PCS DC 3 24V 90dB Active Piezo Electronic Buzzer Beep Tone Alarm Ringer Continous Sound (Black) SFM 27 W Product parameter Length of Wire: 12cm 4. 72in Diameter: 3cm 1. 2in Rated Voltage: 12V Range of Voltage: 3 24VDC Rated Current: 15mA at 12VDC Sound Pressure Frequency: 100dB at 12VDC 30ma Resonant Frequency: 3. 00. 2KHZ Operating Temperature: 20+45 Degree C Storage Temperature: 20+60 Degree C Package Includes: 3 SFM 27 W DC 3 24V Active