Description: Parametric Speaker Test Kit Single-directional Speaker DC12V Description This is an experiment kit for super unidirectional audible speakers using ultrasonic waves. ・Ultrasonic carrier wave is transmitted by 50 ultrasonic transducers and modulated at low frequency. It is completely different from the conventional speaker concept. Ultrasonic waves travel in a straight line, so the sound is loudest in front of you and becomes inaudible when you are a little further away. It has a character similar to light and reflects sound severely, so if you point it at a wall, you can hear the sound coming from the wall. You can hear the voice in front of you from several tens of meters away. ・Even though it is an experiment kit, it can be used practically enough and can be used in various places depending on the idea. ・Unfortunately, the sound quality is not HiFi, but the audio frequency band (about 400Hz to 5KHz). Ideal for voice announcements limited to a specific area. ・Input is input from the earphone output of the audio device. (monaural) ・Power supply: DC12V All accessories are shown in the image. *DC12V power supply is required. Please purchase separately if you do not have one. Shipping Free shipping. Please pay within 3 days after your purchase. Please check the shipping deadline under "Delivery:" at the bottom of your eBay cart. *Some products may require more time. Please also check our shipping policy. *Some products may require more time. Please also check our shipping policy.International Buyers - Please Note:・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/buying. ・These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges. ・We do not mark merchandise values below value or mark items as “gifts” - US and International government regulations prohibit such behavior. ・Shipping will be FedEx or DHL. You cannot choose either one. It cannot be sent by Japan Post. ・If your order is canceled with PayPal payment, the PayPal fee will no longer be refunded to the seller. In case of cancellation due to buyer's convenience, we will charge a PayPal fee. ・If a remote shipping fee is incurred, we may charge a separate shipping fee.
Price: 137.99 USD
Location: Mino-shi
End Time: 2024-11-20T12:23:37.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 60 Days
Refund will be given as: Money Back
Non-Domestic Product: No
Custom Bundle: No
Color: N/A
Material: Plastic
Modified Item: No
Power Supply: DC12V (Sold separately)
California Prop 65 Warning: N/A
Brand: Tristate
Type: Directional Speaker
Input: earphone output of the audio device (monaural)
Audio frequency band: approx. 400Hz~5KHz, not Hifi
Model: Self Assemble Test Kit
Connectivity: Wired
Country/Region of Manufacture: Japan
