Audio box with high frequency levels

I am looking to design and build an audio box to install inside shops. This audio box will transmit a sound that is not hearable by humans or animals, but only by the smartphones: Android phones and the iPhone.

The audio box must have an adjustable strength of distance: anywhere between 50 to 100 mqs. It must have one electric socket (european style). The audio box will be attached to the wall on the sides and not on the roof, so this must be taken into consideration.

The box has to be as small as possible and should not cost more than $30 when producing at 100 per time.

The box should also have an adjustable frequency rate to allow us to produce different tunes for each places. You will also be working with our team to integrate this system with our apps.


1) Design of the product

2) Supplier sourcing

3) Integrate the software and frequency with our team

Skills: Electrical Engineering, Manufacturing Design, Product Design, Product Sourcing, Supplier Sourcing

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About the Employer:
( 0 reviews ) Italy

Project ID: #1157318

6 freelancers are bidding on average $983 for this job


Please check the PM and the attachment below.

$750 USD in 10 days
(3 Reviews)

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$1000 USD in 30 days
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$1000 USD in 14 days
(11 Reviews)

HI, I understand the basic but we need to detail more. I worked on wireless comm and I am sure to complete the task thank you maurizio stefani

$1500 USD in 20 days
(0 Reviews)

Dear project creator, Please see my PM for the details of my bid. Regards Gergely

$900 USD in 20 days
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Hi Can Help you to design and development Sheet Metal Box. withs its developed blanks which can be done on sheet metals CNC unit.

$750 USD in 3 days
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