4-Melody Bicycle Power Horn with 6-LED Red Flashing and Mount (2*AA/120dB)

Pros: Good solid build. When I first removed it from the package, it was heavy enough to suggest it may have come with batteries. The plastic is thicker than it appears to be in the photos. The bike mount clip seems solid enough and is holding. The bottun pad also has a bike mount clip that is not featured in the photos. Two or three of the melodies sound like actual police car sounds.

Cons: I bought it for my 5 year old son's bike and it is... really, Really loud! He didn't want to turn it on at first. I had to cover the speaker 'grill' with a stick-on furniture glider pad to absord some of the sound. You have to take it apart to change the batteries, there is no dedicated battery cover. The lights are not very bright during the day.

Other: Very cool little bike accessory for my kid who loves to play police and police cars! He was so excited he dug out his play police helmet, jacket and handcuffs and has been chasing his friends on his bike since he got it a couple of days ago. Unless you want the neighbours complaining or offering you money to smash it, you should do something about the sound.

Pros: Good for kids, incredible sound and loudness
Very easy installation and the battery last forever...
I have purchased one some months ago and still the batteries are alive...
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Muy bueno para los mas chicos, la instalacion es facilisima y el sonido super fuerte.
Las pilas duran muchisimo, yo compre una de estas hace algunos meses y todavia las pilas estan andando perfecto.

Cons: Sound sometimes is too loud.
I have to cover the speaker a little with tape to decrease sound
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El sonido a veces es demasiado fuerte, tuve que cubrir el parlante con cinta para bajar un poco el sonido que generaban mis chicos dentro del departamento.

Other: Must buy product for kids!
No better cost-benefit product...
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Producto super recomendable para los chicos, no hay mejor relacion costo-beneficio