Features: OOTDTY brand new and immoderate quality. External material: ABS plastic, durable. Rated current: 2mA, Working for DC 30V, Frequency: 4000+/-500Hz. It is broadly utilized in vehicle modification, DIY electronic reminder assignment or other fields that require sound alarm. Equipped with black and crimson 2 wires, convenient for wiring. Specifications: Material: Plastic Weight: Size: As photo shows Color: Black Package Includes: 1x Electronic Buzzer Note: 1 enable 1-2cm mistakes due to handbook measurement, just be sure you do not mind earlier than you order. 2 to the adaptation between different monitors, the picture might not reflect the particular coloration of the item.