This item is a electronic alarm buzzer, well-made of ABS, PPO, copper material. This item is durable and practical use. The buzzer features low voltage, low power consumption and high voice pressure. Features -Color:Black -Material:ABS, PPO, copper -Size:1.50X1.10X1.10cm/0.59X0.43X0.43in -Premium Sound: Our buzzer produces premium quality, realistic sound that enhances the user experience. -Long Working Time: Designed with a low power consumption, it can work for extended periods of time without compromising on performance. -Widely used in alarms, electronic toys, automotive electronic equipment, telephone, timer and other DIY electronic products as a sound device. -Excellent Compatibility: Compatible with a wide range of devices, it can be used with ease across various applications. -Compact yet Powerful: Small in size, yet powerful in sound, our buzzer is a must-have for any electronic enthusiast. Specification -Oscillation Frequency:2.5±0.5KHz -Operating Voltage:2.0-4 -Rated Voltage:3.0 -Current Consumption:<=30mA -Sound Pressure Level:>=85dB -Dimension:12.0xH9.5Ф Package list: 10 Buzzers