Super Directional Speaker Kit - DIY Maker Seeed BOOOLE, US $245.98 – Picture 0

Super Directional Speaker Kit - DIY Maker Seeed BOOOLE, US $245.98 – Picture 1

Super Directional Speaker Kit - DIY Maker Seeed BOOOLE, US $245.98 – Picture 2

Super Directional Speaker Kit - DIY Maker Seeed BOOOLE, US $245.98 – Picture 3

Super Directional Speaker Kit - DIY Maker Seeed BOOOLE, US $245.98 – Picture 4

Super Directional Speaker Kit - DIY Maker Seeed BOOOLE, US $245.98 – Picture 5

Super Directional Speaker Kit - DIY Maker Seeed BOOOLE, US $245.98 – Picture 6

Super Directional Speaker Kit - Diy Maker Seeed Booole

US $245.98

Shenzhen, China
May 11th

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Description This product is a speaker kit which has a sharp directivity by using ultrasound. It sends a sound only straight. It has many wave transmitters. Please note that you need to solder many points for assembling it. Part List: ? 1 x Amplifier PCB (assembled) ? 1 x Speaker PCB (not assembled) ? 49 x Wave transmitters ? 1 x Inductor for the speaker PCB ? 1 x Connector for the speaker PCB ? 1 x Connection cable for the amplifier PCB to the speaker PCB ? 1 x Slide power switch for the amplifier PCB Specification ? Power input: DC 12V, 1A ? Outer diameter 5.5mm, Inner diameter 2.1mm ? Center-positive, Barrel-negative ? Audio input: 3.5mm Stereo mini jack ? Max driving wave transmitter: 100pcs (If you use over 50pcs, you need to use 2A AC adaptor) Cautions: ? Wave transmitters have a polarity. You need to arrange the positive symbol of the transmitter and the PCB. ? Inductor dose not have a polarity, but in order to be able to use the inductor of several types, the PCB has several holes.You can insert the two pins of an inductor into either holes enclosed by two red circles. ? And you need to solder the connector to the PCB ? The positive side of the PCB has holes for checking the polarity of a transmitter. ? You need to solder the transmitters to the PCB without a gap. If it has a gap, it is not possible to exhibit the best performance, because it cannot align the direction of the transmitters. If you have any problem, please contact to international(at)switch-science.com Designer: Switch Science Payment Only PayPal Payments are accepted please. All PayPal Payments must be Confirmed ( Shipping and billing addresses must match ) Pay within 48hrs of the auction end time. Non-Paying bidders will be reported. Customs duties or taxes are buyer's responsibility for all of the listings. Delivery We only ship to the confirmed address provided by PayPal. Before you pay, please make sure your address in PayPal matches the address you would like us to ship to. We offer combined shipping which will save your shipping cost greatly for your multiple purchases. Please do not pay until you make your last purchase. All items will be shipped within 72 business hours upon receipt of payment (except Saturday and Sunday). ePacket with tracking code for United States address,delivery within 7-14 business days. For outside US ,China Post without tracking code,delivery within 25-30 business days. Terms All items sold by us are being described to the best of our abilities, as accurate as possible, and with utmost conscientiousness on our part. The item is sold on an "as is" basis, please ask all questions before bidding to avoid getting an item you are not satisfied with. Please note that No refund, exchange only. We are committed to you 100% customer satisfaction. Your satisfaction is our #1 priority. Bid With Confidence! About BOOOLE INC. researches and develops electronic products and open source hardware with the aim of promoting MAKER SPACE and DIY practice. It makes you believe innovation and invention are no more exclusive to scientific research institutes. Everyone is a creator! We are newcomer on eBay ,but we are trying to be a professional and sincerely seller. Please email us before leaving any negative feedback or open any dispute on PayPal. If you have any questions please feel free to contact us ! Thanks. Web: Booole.com For more further information Email: Boooletech Yahoo email for technical support Message: eBay message for other issues