Best W300 Buzzer

AEDIKO 20pcs Computer Mainboard Buzzer PC Internal Speaker Computer Motherboard Case Beep Alarm Buzzer

Mainboard Buzzer Length: Wire Length: 35mm/1.38inch, Total Length: 60mm/2.36inch.
Buzzer Cable: The Red Line is Positive, the Black Line is Negative.
Function: The Sound of the PC Internal Speaker Buzzer Can Judge the Working Status of The Motherboard.
Easy to Install: The Computer Motherboard Internal Speaker Come with 4 Pin Female Header Connector , Just Plug the Buzzer Into the Speaker Interface Of Mainboard Then Work.
Package Contents: 20pcs Motherboard Computer PC Internal Speaker Buzzer.

WITH LIGHT AND SOUND TIPSIt would buzz loudly & light up for as long as pressed the game buzzer. The light up red X on the front is cute too & attracts attention.These buzzer buttons increase the fun of the game, easy to use.
USE FOR FAMILY FUED GAMEThe game answer buzzer is perfect for a funny prank, office desk gadget, home quiz evening & can be party contest prop toy for kids adult. Actively encourage contestant to join in the competition with this quiz game buzzer.
MAKE CLASSROOM QUIZZES MORE FUNThese game buzzer use for quiz games in classroom, the students enjoy buzzing it for wrong answers on spelling bees or math drills. And to use it if a student starts acting up in class. Lol.
A GOOD PLAY PROPOur buzzer button can let a youth group get together. The children also loved to borrow it to play along with watching American Got Talent who loves being the Guest Judge.
NOT INCLUDED AA BATTERIESOur game buzzer is powered by 2 piece AA batteries(Not included in it).The game answer buzzers are durable and made out of resistant material.Which are compact size and lightweight, easy for carry.

4.3" TFT LCD mirror monitor with a built-in high-volume warning buzzer,no need to connect a extra buzzer. Comes with a buzzer switch to control buzzer ON/OFF..
Ultra-thin rear view mirror monitor with 400CD/M2 brightness,the brightest in the marketplace.Clip-on the existing rear view mirror..
2 channel Video inputs (Camera and DVD),automatic display rear view image when the car reverse..
High definition image quality camera and LCD monitor (640*RGB*480), wide angle backup camera..
Widely used on kinds of car and pickup which around 5 meter length. Prevent future dangerous and costly collisions.Help to increase safety for passengers, pedestrians and your family..

Type:5V Electromagnetic Active Buzzer, Material: ABS.
Rated Voltage: 5V, Operating Voltage: 4-8V, Rated Current (MAX): 30mA, Min Sound Output At 10cm: 85 dB, Resonant Frequency: 2300 +/- 300 Hz..
Uses: Active buzzer need only on the DC will beep,active buzzer internal oscillator..
High Quality: All multi-chip integrated circuits using gold wire ball bonding, complex production process, long life, stable performance, high rate of qualified products..
Package content:12pcs Electromagnetic Active Buzzer..

? Buzzer alarm button with light and sound tips. Increase the fun of the game, easy to use..
? Simply press the red buzzer to make it light up, it will buzz loudly..
? Actively encourage contestants to join in the competition with this buzzer. Response buzzers let competitors easily buzz when they have an answer..
? Powered by 4 x AA batteries(Not included in it). You will get a buzzer button with light and sound..
Size: app.11x9.7x12.2cm/4.33x3.82x4.8in(LxWxH).

With the built-in battery, it can work as a standard buzzer that controlled by transmitter or standalone buzzer that beeps loudly after the main battery has been ejected..
Super loudly that the volume can reach up to 110 dB..
The LED can flash automatically when the built-in light sensor detects the light darkness..
Two ways to disarm the buzzer, via the switcher on the buzzer or plug-in-out the quad battery..
Be compatible with both FPV quadcopter and RC Airplane..

Buzzer alarm button with light and sound tips. Increase the fun of the game, easy to use..
Actively encourage contestants to join in the competition with this buzzer. Response buzzers let competitors easily buzz when they have an answer..
Size: app.11x9.7x12.2 cm/4.33x3.82x4.8 in (L x W x H)..
Excellent for a funny prank, office desk gadget, gag gifts game buzzer, and can be Party Contest Prop Toy for Family, School, Friends Party..
Package includes: 4 x Game Answer Buzzer. Powered by 2 x AA batteries each (Not included)..

-iFlight fpv finder buzzer built in battery,it can automatically alarm, sound over 100db, which make it easy to find your drone..
-With dual LED, much brighter,easier to find your drone in the darkness..
-Mini upgrade version, lightweight and with smaller size of 18*17*15mm suit for 3-5inch fpv drone.
-The drone buzzer is compatible with traditional active buzzer, and all BF/CF flight controls.
-How to disarm the buzzer : disconnect main battery, hold disarm button on YR50B_S for 1-5 seconds then release..