Best Cheap Buzzer

Reverse Parking With Radar Beeps

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..

24 included sounds create an ideal selection of sounds to help you get the sleep you deserve and the sleep your body needs (see attached list of sounds)..
Includes world leading sleep therapy to help you fall asleep more effectively than cheap sound machines or simple white noise machines. The S-680-01 includes several sounds that use Delta, Alpha or Beta brainwaves to coax your brain to match these frequencies and enter healthy states of sleep or relaxation..
Patented Sleep Enhancement Technology - seamlessly and gradually slows playback speed to gently lull you to sleep..
Professional, digitally recorded sounds reproduced in CD quality sound. Exclusive Customizable Sounds – simply download new sounds or order a custom sound card from the Sound Oasis web site..
Chime Alarm Sound - no more loud annoying buzzer. Backlit Alarm Clock – wake to selected sound or chime.
includes brightness control (3 brightness levels, plus off). Sleep Timer with Auto Shutoff – continuous play or auto shutoff in 30, 60 or 90 minutes. Operate with included global power adapter or by 4 AA batteries (not included). Global adapter has removable plugs for USA, Europe and Asia regions. Headphone Jack - for private use with headphones or pillow speakers..

? 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..

Quality Component: Professional design, designed with a compass for easier and quicker tuning. Powered by the receiver, nice tool for campers..
Easy To Use: With an electronic buzzer, easy operation, LCD with backlight to show the satellite signal..
Accurate Measurement: This professional digital satellite detector is much more accurate than any other measuring equipment of its kind..
Useful Tool: Connect your LNB and receiver to the satellite finder to track the clearest setting for the satellite you wish to tune to..
Signal Alarm Buzzer: Built in 0Hz, 22KHz, 13V, 18V signal alarm buzzer, buzzer and damping control..