ultrasonic directional speaker with Focused Audio Technology Parametric Array Sp

Description: Description: Wireless Version DS100B Aux Wire Version DS100A What is a directional speaker? What is a directional speaker? In a nutshell, the directional speaker is an audio device that allows you to listen to audio while those around you cannot hear what you are hearing. In the following paragraphs we will tell you more about the directional speaker and the technology it uses, and we will list a few industries where it is widely employed. GENERAL SPECIFICATION OPERATE VOLTAGE DC12V ~ DC24V OPERATE CURRENT 1A MAXIMUM TRANSMITTING RANGE >20 METERS MAXIMUM AUDIO SIGNAL Vpp < 1 Vp-p DS100A 3.5mm AUX INPUT VERSION DS100B B.T. WIRELESS AUDIO VERSION DS100B B.T. ID BK8000L What sound control technologies do we use? DS100 specialize in the manufacturing of directional speakers, also commonly known as parametric speakers, which function to emit a narrow beam of sound towards a targeted area and just steps away no sound can be heard.In order to create these unique speakers, the DS100 team of engineers utilize innovative adaptive sound control technologies, namely parametric array, a nonlinear transd uction mechanism. A parametric array does not generate sound directly – it uses ultrasonic waves to reproduce sound. Ultrasonic waves modulated with an audio signal are generated by ultrasonic transducers. As they pass through air or encounter objects, they de-modulate and sound can be heard.Diffffraction of ultrasonic waves is much lower than sound waves because of their higher freq uency. So, the ultrasonic waves, and the sound coming from the directional speaker, spread very little and are confifined to a narrow beam that can reach tens of meters. Directional Speaker > Retail > Exhibitions and Showrooms > Museums > Virtual Source Effffects > Digital Signage > Public Address and Warning Systems > Command and Control Centers > Offices > Hearing Impairment Enhancement DS100 produces a directional beam of sound,sort of like a spot light for sound. This meansif you are standing in front of it when it’s on,you will hear the sound it produces. If you stepto the side, you won’t hear anything produced by DS100. In comparison, the speakers we areused to tend to emit sound radially, filling anentire space around it with sound.A focused speaker is a device that generatesmid to high-frequency audio in a narrow beamof soundwaves. Unlike low-frequency soundwaves, mid to high-frequency sound can be focused almost like a laser beam. These waves travel at long distances but are loudest at the center. They are only heard by those standing in front of the speaker. Directional or focused speakers are very different from traditional speakers in the way they distribute sound. While the role of conventional speakers is to transmit the audio as widely and as loudly as possible, directional speakers aim to focus the audio into a concentrated area allowing for much better sound clarity, usually at lower decibel levels. Directional speakers are commonly used to address specific areas within a crowd rather than disturbing a wider audience. Shipping: It usually takes 3-5 days to process the order. Standard express delivery shipping, UPS\USPS\FEDEX\DGM, etc. We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.Changing the delivery address after the package sent is not accepted，thank you！ Customs Declaration: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding. Return Policy: Please be sure to contact us to obtain the sender's address before returning. Unless there is a quality problem, the opened and installed items are not allowed to be returned, which should be supported by evidence. All returned items must be properly packaged in their original condition and contain all the items originally provided. We always reply to eBay messages within 1-2 business days. If you do not get a response from us, then please check your eBay message. Only unused, undamaged and original condition item can be qualified for a return. Feedback: We strive for 100% customer satisfaction! Positive Feedback is very important to us. If you have any questions, please feel free to contact us instead of leaving negative feedback. We will reply your email within 24 working hours. Only unused, undamaged and original condition item can be qualified for a return. About us: Our normal working days are from Monday to Saturday, from 9:00 a.m. to 6:30 p.m. Beijing time. However, due to the large number of emails received every day and the time zone difference, we will reply to your email as soon as possible. All the pictures are taken by us, and there may be color difference. All parameters of the product are measured manually, with certain deviation. Thank you for your understanding and support

Price: 299.5 USD

Location: CN

End Time: 2024-10-30T04:00:01.000Z

Shipping Cost: 0 USD